if anyone has information on George ( where born in Mass in 1848) middle initial, parents? wife fanny maiden name? born 1852(3) -help please

I found George and Fanny in the 1880 census in Berkshire County, Massachusetts. I have found the following birth certificates with various information
1. Jennie Marsh born 7-15-1871 in Pittsfield, Berkshire, MA (no mother's maiden Name). Says George was born in Connecticut and Fanny in New York
2. George Marsh born 2-20-1873 in Adams, MA (Fanny Louden is maiden name). Says George was born in Adams, MA and Fanny born in Hudson ( I assume NY?)
3. Charles Marsh born 11-2-1875 in Adams, MA (no mother's maiden name given). Says George was born Cobblehill (can't fully read it) and Fanny born in Adams
4. Twin Females Hannah and Martha Marsh born 10-29-1877 in North Adams, MA. I know the census says these twins are male so it was probably a clerical error. No mother's maiden name given. Says George was born in Adams, MA and Fanny born in Schoharie, NY.

Schoharie is about 88 miles from Adams, MA. I would suspect they got married there.

Thanks,
Ancestry Sisters
www.ancestrysisters.com

thank you for your help...here is what I have thus far:

George Marsh or George S. Marsh married Fanny in 1872. He was born in MA she was born abt 1852-3 in NY. they had Jennie 1871, charlie 1873, George 1873, homer 1877 and henry 1877.(1880 census) ..then they lived in ED63 ward 18 albany city-(1900 census)-- that is where I get lost, I am trying to find George's birth place and who his parents were ...any advice? when I go back to 1870 and 1860 census there is no record of a George