Ron, What is the parentage of this Ira Colby? Ira COLBY was born on 31 DEC 1803 in Henniker, Merrimack County, New Hampshire. (SOURCE: FHL Film: 1000378; Index to births, early to 1900 New Hampshire. Registrar of Vital Statistics.) He appeared in the census in 1850 in Claremont, Sullivan County, New Hampshire. Occupants listed at this residence: Bob Colby