YAY think i've found something of his birth on familysearch, tho there's a few discrepancies, mainly that he's down as a girl!!
Clement Harrison, Female
Birth: 04 OCT 1870 Youngstown, Mahoning, Ohio
Parents:
Father: John C. Harrison
Mother: Elizabeth Olein
Source Information:
Batch No: C869540
Need to work out if & how I can get a copy of this, they don't make it easy like the GRO here