Either Norton has provided the wrong birth information, or he is not the s/o Wilson/Martha 1880 Harrison.The census was taken 6-16, and the unnamed male child was b Jan....5mo old.
Norton's b/place is all over the place on the census. WWI Draft, and Soc Sec he was b 6-15-1880 WWII Draft, he was b 6-15-1883 New Orleans LA He also served in the Marines 1904-12 PA. Son Norton John MARKLEY 1915-1945 bur Punchbowl, Honolulu, also a Marine
Then there is this.... DE MARRIAGES 10-6-1909 Wilmington, New Castle Co Norton C MARKLEY 28, single, machinist/resides Wellsville NY; b Wellsville NY s/o Nathaniel MARKLEY/Martha J MARTIN m Alice D RULEFF 29, single, resides Phila PA; b Galveston TX d/o Francis RULEFF/Elizabeth GALPUS??
The tree I read has Norton Sr m to Johanna BARKHOLT. Good luck.....it looks like you have quite a bit of untangling to do!