Looking for the parents and siblings of Charles Miller b: 1809 in Pennsylvania.

I have him in Elklick township in 1850 and he was married to Amy b: 1810 in Pennsylvania. (also spelled Anny and Annie). He had 2 sons listed. They were Charles Engle Miller (b: 1838 PA) and John C. Miller (b: 1845 PA). I am not sure if he had any other children.

In 1860 Charles and his wife lived in Allghany township.

In 1870 they lived in Brothers Valley.

1880 they were living in Berlin Borough.
He was listed as a tailor on all of these census reports.

The last place I find Charles Miller is on an 1890 Veterans Schedule. The schedule shows that he served as a private in Company F, 142 PA INFT. He served for 1 year 8 months and 17 days.

I am a descendant of his son, John C. Miller. He married Elizabeth Jane Weimer.
Any help is greatly appreciated.