From Homer's marriage cert indicates Daniel b. OH. Might be one of these from familysearch.org
Pennsylvania, County Marriages
https://familysearch.org/pal:/MM9.3.1/TH-1942-21134-10535-59?cc=1589502&wc=MMY5-Q8C:n422634557
Homer C Wagner
age: 22 est birth year: 1892 1st marriage
Birthplace Wayne Twp., Crawford Cty, PA
father: Dan Wagner birthplace Mansfield, OH
father occupation Farmer current residence Cooperstown,
mother: Ida H Wagner birthplace Warren Cty, OH:
Marriage 24 Dec 1914 Venango PA
spouse: F Ada M Deeter
age: 14 est birth year: 1900 Crawford, PA
father: Jacob Deeter
mother: ...Bold Deeter
United States Census, 1870 Crawford, Wayne, PA
https://familysearch.org/pal:/MM9.1.1/MZGX-884
Daniel Wagner M 49y PA
Juliann Wagner F 44y NY
John Wagner M 16y PA
Maryann Wagner F 20y PA
William Wagner M 14y OH
Daniel Wagner M 12y OH
Joseph Wagner M 7y PA
Hugh S Wagner M 3y PA
U S Census, 1910 Troy, Crawford, PA
https://familysearch.org/pal:/MM9.1.1/MGQ2-TXC
self Dan Wagner M 51y OH
wife Ida Wagner F 46y PA
son Homer Wagner M 18y PA
son Walter Wagner M 15y PA
US Census, 1920 Venango, PA
self Lyla Wagner F 71y PA
bro in law Daniel Wagner M 61y OH
Ida Wagner F 29y PA