Trying to determine my Great, Great, Great Grandfather Alfred A. Smith 's birth and how to enter. His headstone has full birth and death dates of Alfred A. Smith from Pittstown, Rennselaer County New York. Birth May 1828 - Death June 20, 1900.
1865 New York State Census shows he was 27 y.o., which would put his birth in 1838.
1870 NY State Census lists his age as 40!? He aged 13 years in a five year time period.
The 1850 Town of Hoosick census lists his age as 20, which would make his birth year 1930, vice 1928 as noted on headstone.
The 1860 Federal census lists his age as 29, which would make his birth abt 1830, vice 1828 on headstone
How do you handle that?