Could be the same Smiths???

1875 New York State Census
Samuel J. Pearsall age 42
Carrie E. Pearsall age 39 wife
Willie S. Pearsall age 14 son
William F. Smith age 69 father-in-law
Sarah M. Smith age 64 mother-in-law
John Pearsoll age 24 brother

1880 census Saratoga Springs, Saratoga, NY
Sarah M. Smith self 67y widowed
Edward W. Smith son 24y

Edward W.Smith self 24y
Anna Smith wife 20y
William Smith son 2y
Edward T.Smith son 5m

1905 census Saratoga Springs, Saratoga, NY
Edward T.Smith head 24y
Lillian A. Smith wife 23y
William E. Smith son 4y
Isabelle A. Smith dau. 3y
Marion L. Smith dau. 4m
Richard C. Baker head 48y
Alice B. Baker wife 45y
Annie Baker mother 74y