| DATE OF BIRTH | CHILD'S SURNAME | CHILD'S GIVEN NAME | SEX | COLOR | NAME OF FATHER | NAME OF MOTHER | RESIDENCE | OCCUPATION | PLACE OF BIRTH | DATE OF RECORD | COMMENTS |
| Oct. 15, 1898 | ZAHNIZER | Richard | Male | White | E. S. | Addah | Butler, Pa. | Minister | Center Ave. | Jan. 2, 1899 | |
| 19O4 | ZANEVICH | Mary | Female | White | Joe | Pavaska | Butler | Laborer | Pearce Ave. Red Row | May 28, 19O4 | |
| May 22, 19OO | ZANG | Cathrine C. | Female | White | Chas. | Elizabeth | Summit Twp. | Laborer | Summit Twp. | Dec. 5, 19OO | |
| Oct. 11, 19O4 | ZANG | Ellis | White | Joseph | Mena | Summit Twp. | Laborer | Summit Twp. | Dec. 9, 19O4 | ||
| Dec. 24, 19OO | ZANG | Euniec | Female | White | Joseph | Minnie | Summit Twp. | Farmer | Butler | May 28, 19O1 | |
| Apr. 13, 19O2 | ZANG | Gertrude | Female | White | Joseph | MInnie | Summit Twp. | Laborer | Summit Twp. | June 17, 19O2 | |
| Aug. 13,19O2 | ZANG | Irene G. | Female | White | Chas. | Lizzie | Summit Twp. | Laborer | Summit Twp. | Dec. 3, 19O2 | |
| Nov. 5, 19O3 | ZANG | Lester | Male | White | Joseph | Minnie | 121 South Ave. | Laborer | 121 South Ave. | ||
| Nov. 29, 19O3 | ZANG | Nicholas | Charles | Elizabeth | Summit Twp. | Laborer | Summit Twp. | Dec. 14, 19O3 | |||
| ZANNER | Anie | Female | White | Sam | Mary | ||||||
| Dec. 5, 19O2 | ZARNICK | Bertha | Female | White | Joseph | Mary | Butler, Pa. | Laborer | Butler, Pa. | June 5, 19O3 | |
| ZAULA | John | Male | White | Steane | Julia | ||||||
| ZAULA | Steam | Male | White | Steane | Julia | ||||||
| Apr. 24, 19O5 | ZAVALYDRIGA | John | Male | White | John | Zuzy | Donegal Twp. | Miner | Donegal Twp. | May 9, 19O5 | |
| Apr. 24, 19O5 | ZAVALYDRIGA | Mary | Female | White | John | Zuzy | Donegal Twp. | Miner | Donegal Twp. | May 9, 19O5 | |
| Apr. 21, 1898 | ZEAMAN | Bernard L. | Male | White | Joseph | Minnie | Evans City | Merchant | Pgh. St. | May 7, 1898 | |
| Sep. 19, 1896 | ZEEF | Sarah Anne | Female | White | Max | Rose | Butler, Pa. | Junkdealer | 481 Main St. | Dec. 3, 1896 | |
| Dec. 17, 1898 | ZEEFE | Lillie | Female | White | Max | Rosa | Butler Twp. | Junkdealer | Butler Twp. | May 19, 1899 | |
| ZEEFE | Marum | Female | White | Rosa | |||||||
| Nov. 15, 19OO | ZEEFE | Philip | Male | White | Max | Rosia | Butler Boro. | Laborer | Pillow St. | May 16, 19O1 | |
| Oct. 12, 19O4 | ZEFE | Infant | Male | White | Max | Mary | Fair Ground Ave. | Grocer | Fair Ground Ave. | Jan. 23, 19O5 | |
| ZEFE | Infant | Male | White | Max | Mary | ||||||
| May 22, 1897 | ZEHMER | Amelia Josie | Female | White | Chas. | Emma | Jackson Twp. | Farmer | |||
| May 25, 19O4 | ZEHNDER | Elmer | Male | White | Joseph | Anna | Jackson Twp. W. | Moulder | Jackson Twp. W. | Dec. 20, 19O4 | |
| Sep. 19, 19O3 | ZEHNER | Earl | Male | White | E. W. | Lula | Jackson Twp. | Farmer | Jackson Twp. W. | Dec. 15, 19O3 | |
| Nov. 6, 19O1 | ZEHNER | Harry | Male | White | E. M. | Lula | Jackson Twp. | Farmer | Jackson Twp. | Dec. 7, 19O1 | |
| Oct. 6, 19OO | ZEHNER | Homer Charles | Male | White | Charles | Emma | Jackson Twp. | Farmer | Jackson Twp. | Dec. 7, 19OO | |
| Aug. 15, 19O2 | ZEIGLER | Anna May | Female | White | Al | Mrs. | Harmony Boro. | Laborer | Harmony | Nov. 8, 19O2 | |
| Apr. 15, 19O5 | ZEIGLER | Babe | Female | White | Ab. | Evansburg Boro. | Pumper | Evansburg Boro. | May 10, 19O5 | ||
| ZEIGLER | Emet Devan | Male | White | Jacob | Adda | ||||||
| Jul. 31, 19O4 | ZEIGLER | Ethel Lorrain | Female | White | Abraham | Clara Emma | Evans City | Oil Man | Evans City Boro. | Mar. 17, 1965 | Court Order |
| Feb. 29, 1894 | ZEIGLER | Florence | Female | White | J. S. | Clara | Zelienople | Bookkeeper | Zelienople | May 21, 1894 | |
| Jul. 19, 1895 | ZEIGLER | Florence Catharine | Female | White | Edward | Marz | Mars, Pa. | Rigbuilder | Mars Boro. | Dec. 9, 1895 | Mary F.written in for Mother's name. |
| Aug. 1, 19O4 | ZEIGLER | Henry O. | Male | White | O. W. | Mary | Jackson Twp W | Merchant | Jackson Twp.W | Dec. 21, 19O4 | |
| Dec. 6, 19O3 | ZEIGLER | Irwin | Male | White | L. L. | Myrtle | Jackson Twp. | Moulder | Jackson Twp. | May 27, 19O4 | |
| Jul. 11, 1895 | ZEIGLER | Laura | Female | White | Sam | Kate | Zelienople, Pa | Milkman | Zelienople | Dec. 13, 1895 | |
| Nov. 14, 1895 | ZEIGLER | Lettia | Female | White | Anzie | Maude | W. Jackson Twp. | Farmer | |||
| Sep. 4, 1897 | ZEIGLER | Lucille Whitney | Female | White | Alfred | Rose C. | Mars Boro. | Merchant | Mars Boro. | May 15, l950 | Court Order |
| Apr. 15, 19O2 | ZEIGLER | Richard Earl | Male | White | Ed | Lona | Patterson St. | Rigbuilder | Patterson St. | May 19, 19O2 | DOB written over as Dec. |
| Oct. 22, 19O1 | ZEIGLER | Samuel | Male | White | Samuel A. | Mary | Penn Twp. | Farmer | Penn Twp. | May 17, 19O2 | |
| Jun 9, 1894 | ZEIGLER | Shurley A. | Male | White | John | Annie C. | 413 Lookout Ave. | Carpt. | 413 Lookout Ave. | Dec. 31, 1894 | |
| Oct. 22, 19O1 | ZEIGLER | Willis Samuel | Male | White | Samuel A. | Mary E. | Penn Twp. | Farmer | Penn Twp. | Aug 18, l942 | Court Order |
| Feb. 28, 1894 | ZEIGLER | Female | White | H. A. | Mary E. | Portersville, Pa. | Undertaker | Portersville, Pa. | Dec. 1894 | ||
| Jul 17, 1894 | ZEIGLER | Female | White | Ed | Mary E. | Mars | Rigbuilder | Mars | Jan. 2, 1894 | ||
| Apr. 18, 1895 | ZEIGLER | Female | White | Fred S. | Irene | Mars | Fr. Agent | Mars | May 25, 1895 | ||
| May 15, 1895 | ZEIGLER | Female | White | Clark | Maud | Mars | Tinner | Mars | May 25, 1895 | ||
| Mar. 23, 1896 | ZEIGLER | Male | White | S. A. | Ellen | S. Penn Twp. | Farmer | S. Penn Twp. | May 5, 1896 | ||
| Sep. 4, 1897 | ZEIGLER | Female | White | Al | Rosie | Mars Boro. | Tinner | Mars Boro. | Dec. 9, 1897 | ||
| Oct. 7, 1897 | ZEIGLER | Male | White | Amzie | Maud | Jackson Twp. | Farmer | ||||
| Mar. 8, 19OO | ZEIGLER | Male | White | Al. | Carie | Harmony Boro. | Laborer | Harmony | May 17, 19OO | ||
| Oct. 2, 19O1 | ZEIGLER | Female | White | Ira s. | Mrs. Ira | Zelienople | Editor | Zeienople | Nov. 29, 19O1 | ||
| Sep. 8, 19O4 | ZEIGLER | Male | White | Wm. | Flora | Evans City | Wagonmaker | Wahl St. Evans City | Dec. 8, 19O4 | ||
| Sep. 4, 19O4 | ZEIGLER | Baby | Male | White | Abraham | Mrs. A. | Harmony St | Pumper | Evans City | Dec. 8, 19O4 | |
| ZEIGLER | Baby | Male | White | Abraham | Mrs. | ||||||
| Dec. 4, 1898 | ZEIR | Herman Oliver | Male | White | George | Rachel | Winfield Twp. | Farmer | Winfield Twp. | May 2, 1899 | |
| Feb. 5, 1896 | ZEIR | William L. | Male | White | George | Rachael | Winfield Twp. | Farmer | Winfield Twp. | May 6, 1896 | |
| Jul. 30, 1897 | ZEISER | Jennie | Female | White | Henry | Jennie | Forward TWp. | Pumper | Forward Twp. | Nov. 15, 1897 | |
| Jul. 15, 1893 | ZELLSMAN | C. S. | Female | White | John | Lous | Winfield Twp. | Farmer | Winfield Twp. | Dec. 21, 1893 | |
| Dec. 4, 1898 | ZELLSMAN | Gertrude M. | Female | White | Christian | Elizabeth | Jefferson Twp. | Farmer | Denny | May 9, 1899 | |
| Oct. 25, 1896 | ZELLSMAN | T. L. | Female | White | J. G. | L. | Winfield Twp. | Farmer | Winfield Twp. | Dec. 31, 1896 | |
| Oct. 16, 19O5 | ZELSMAN | Timothey R. | Male | White | Christ | Elizabeth | Jefferson Twp. | Farmer | Jefferson Twp. | Dec 27, 19O5 | Info in last 4 columns written in. |
| May 14, 19O4 | ZELSMAN | Male | White | John | Sonza | Winfield Twp. | Farmer | Winfield Twp. | Dec. 9, 19O4 | Mother's name written in as Louisa. | |
| Oct. 12, 1895 | ZEMAN | Rozetta | Female | White | Joseph | Minnie | Evans City, Pa. | Merchant | Evans City, Pa. | ||
| Jul. 11, 19O3 | ZEMMEL | Clare Marie | Female | White | Valentine | Nancy | Donegal Twp. | Pumper | Donegal Twp. | Oct. 8, 19O3 | |
| Dec. 17, 1894 | ZEMMEL | John Joseph | Male | White | Peter | Susan | Donegal Twp. | Farmer | May 23, 1894 | ||
| Nov. 10, 19O4 | ZENERIK | Mary | Female | White | John | R. | 8 Red Row | Laborer | 8 Red Row | Jan. 21, 19O5 | |
| ZENERIK | Mary | Female | White | John | R. | ||||||
| May 29, 1895 | ZENTZ | George D | Male | White | Henry | Jennie | Butler, Pa. | Laborer | 124 Quarry St. | Dec. 23, 1895 | Middle Initial written in as an L instead of D on Child's Given Name |
| Feb. 2, 19O2 | ZENTZ | Mabel Ethel | Female | White | Henry | Jennie | 100 Hill St. | Laborer | 100 Hill St. | May 7, 19O2 | |
| Dec. 2, 1898 | ZENTZ | Margaret | Female | White | Henry | Jennie | Butler Boro. | Laborer | West North St. | May 9, 1899 | |
| Apr. 24, 1899 | ZENTZ | Female | White | Chas. | Sophia | Harmony Boro. | Baker | Harmony Boro. | May 31, 1899 | ||
| July 15, 19O4 | ZEPLEY | Clara F. | Female | White | Warren W. | Annie E. | Franklin Twp. | Laborer | Franklin Twp. | Nov. 29, 19O4 | |
| Oct. 19O2 | ZETOSKI | Paul | Male | White | Adam | Mary | Butler Twp. | Laborer | 53 Standard Ave. | June 4, 19O3 | |
| Dec. 23, 19O4 | ZETTLEMOYER | Lloyd | Male | White | Wm. | Jennie | 324 Jackson St. | Laborer | Butler Twp. | May 10, 19O4 | |
| Jun. 9, 1898 | ZIEGLER | Claude M. | Male | White | John S. | Hanah | Butler, Pa. | Laborer | Lookout Ave. | Jan. 8, 1899 | |
| Jul. 12, 1899 | ZIEGLER | Floyd Charles | Male | White | Milton H. | Maggie M. | Evans City | Saw Miller | Evans City | Dec 15, l942 | Court Order |
| Dec. 9, 1896 | ZIEGLER | Olive May | Female | White | August | Katie | Harmony Boro. | Pumper | Harmony Boro. | Dec. 18, 1896 | Father's name written in as Gustavus Adolphus; Mother's name written in as Catherine. |
| May 16, 1899 | ZIEGLER | Raymond D. | Male | White | A. C. | Maud | Mars | Merchant | Nov. 21, 1899 | ||
| Apr. 21, 1897 | ZIEGLER | Male | White | Milton | Margaret | Evans City | Carpenter | Evans City | |||
| Dec. 2, 1898 | ZIEGLER | Female | White | Walter | Mary | Butler, Pa. | Painter | 210 Pearl St. | Dec. 22, 1898 | ||
| Feb. 8, 1899 | ZIEGLER | Female | White | S. A. | Mary E. | Penn Twp | Farmer | Penn Twp. | May 8, 1899 | ||
| Jul. 12, 1899 | ZIEGLER | Male | White | Milton | Emma | Evans City | Carpenter | Evans City | Nov. 25, 1899 | ||
| Aug. 19, 1896 | ZILLIFRO | Loretta | Female | White | Geo. Knittle | Millie Zillifro | Concord, Pa. | Laborer | Concord Twp. | Dec. 11, 1896 | |
| Oct. 23, 19O4 | ZIMBRIE | Mary E. | Female | White | Z. A. | Jessie M. | Harrisville Boro. | Clerk | Main St. | Dec. 16, 19O4 | |
| Apr. 26, 19O5 | ZIMMEL | Ester M. | Female | White | Valentine | Nancy | Donegal Twp. | Laborer | Donegal Twp. | May 9, 19O5 | |
| Aug. 3, 19O1 | ZIMMEL | Joseph Allen | Male | White | Valentine | Nancy | Donegal Twp. | Pumper | Donegal Twp. | Jun 1, l942 | Court Order |
| Aug. 4, 19O1 | ZIMMELL | Joseph Ellern | Male | White | Valentine | Annie | Donegal Twp. | Pumper | Dec. 19, 19O1 | Date of Record handwritten. | |
| Apr. 5, 1899 | ZIMMERMAN | Edna May | Female | White | Chas. | Zela | Butler Twp. | Farmer | Butler Twp. | May 10, 1899 | |
| Nov. 2, 19O3 | ZIMMERMAN | John M. | Male | White | J. H. | Jane | Venango Twp. | Miner | Nov. 5, 19O3 | ||
| Oct. 16, 1897 | ZIMMERMAN | Louisa K. | Female | White | Charley | Zell | Butler Twp. | Teamster | Butler Twp. | ||
| May 18,1897 | ZINKHAM | Chas. D. | Male | White | Henry | Kate | Jackson Twp. | Farmer | |||
| May 18, 1898 | ZINKHAM | Mary E. | Female | White | George | Minnie | W. Jackson Twp. | Laborer | June 18, 1898 | Surname M written in as N; Date of Record handwritten. | |
| Jan. 19, 1894 | ZINKHAM | Sadie A. | Female | White | Henry | Catherine | Jackson Twp. W. | Farmer | Jackson Twp. W. | ||
| Apr. 18, 1898 | ZINKHAM | Female | White | John | M. | Evans City | Carpenter | Jackson St. | May 5, 1898 | ||
| Apr. 13, 1899 | ZINKHAM | Female | White | Philip | Katherine | Harmony Jackson Twp. | Farmer | Harmony | June 2, 1899 | ||
| Nov. 5, 1894 | ZINKHAMM | Jacob | Male | White | J. W. | Sarah | Evans City, Pa. | Carpenter | Pittsburg St. | Dec. 1894 | |
| Feb. 29, 19O4 | ZINKHAN | Lawrence | Male | White | Henry | Cathryn | Jackson Twp. | Farmer | Jackson Twp. | May 25, 19O4 | |
| Nov. 17, 1894 | ZITMAN | Cara | Female | White | H. | L. | Saxonburg | Laborer | Main St. | Dec. 29, 1894 | |
| Jul. 27, 1897 | ZOBERENZ | Herman Oliver | Male | White | William | Cassie | Franklin Twp. | Farmer | Franklin Twp. | Dec. 23, 1897 | |
| Nov. 19O2 | ZOMBI | Frank | Male | White | Stephen | Aland | Butler Twp. | Laborer | 63 Standard Ave. | June 4, 19O3 | |
| ZOMBUSKA | Mike | Male | White | John | K. | ||||||
| Apr. 11, 1896 | ZORB | Amanda L. | Female | White | John | Lena | Butler, Pa. | Producer | 214 First St. | May 12, 1896 | |
| Feb. 20, 19O4 | ZUCKERMAN | Ida | Female | White | Gus | Ida | Fairground Ave. | Baker | Fairground Ave. | May 11, 19O4 | |
| ZUKERMAN | Ida | Female | White | H. | J. | ||||||
| ZUMBILA | Mary | Female | White | Joe | Annie | ||||||
| Oct. 28, 19O1 | ZUMER | White | C. F. | Lillian | Lincoln St. | Laborer | Lincoln St. | May 12, 19O2 | |||
| Jul. 25, 1893 | ZUVER | Thomas Nelson | Male | White | T. W. | Nellie | Bruin | Pumper | Bruin | Jan. 1, 1894 | |
| Dec. 1, 1894 | ZUVER | Male | White | T. W. | Nellie | Bruin | Pumper | Bruin | Jan. 5, 1894 | ||