This is my brick wall of 35+ years.

(My GREAT GRANDFATHER)
WILLIAM B ROSS b mar 1863 d ? m 1894 CARRIE LOUISE HERRINGTON b oct 25,1868 NY,NY d oct 24,1933(dau of ROBERT HERRINGTON b 1845 nyc
d ? buried rural cemetary albany,ny and MARY
LOUISE WATERMAN b 1840 nyc d nov 1922 buried rural cemetary albany,ny)

WILLIAM and CARRIE'S children:
1)ARTHUR ROSS b apr 1896 d ?
2)LEROY FRANCIS ROSS b may 1898 albany,ny d mar 1978
3)WILLIAM ROSS b 1900 d 1900 (as baby)

according to the 1900 census WILLIAM+CARRIE
1)lived at 73 hawk st albany,albany co,ny
2) married six years
3) he was a traveling salesman
4)WILLIAM'S parents both from Italy(questionable)or(possibly changed name to ROSS after arriving in usa)
5)CARRIE'S parents both from NY

according to LEROY (my grandfather) his father (WILLIAM) left the family when he was a baby.
could this be because of divorce,seperation,
abandonment or possibly death??????
any help would be greatly appreciated

THANK YOU