There was an Andrew Brentlinger who killed his wife in 1871 but I don't think this is the same one. May be related tho. New York Herald April 8, 1871- Andrew Brentlinger was hanged on that date in Lima, Allen Co., Ohio. The write up names 3 of his children, Martha E., Peter and Abraham, and 2 brothers, Daniel andGeorge. Wifes name was Sarah.
If you check out Brentlinger Family on Genforum you may be able to find out more about your Brentlinger family.
1910 Washington twp., Auglaize Co., Ohio census. Brentlinger Philip N.70M2 10 Oh Pa Oh Mary Awife 66 M2 10yrs. 9ch. 2living Oh Va Va Rachel must have died but havent found a death date for her.
In Auglaize Co.,marriages, 1848 to 1898 there are 13 Brentlinger marriages including Philip Brentlinger and Rachel Wagner in 1863.