The 1873-1874 Hartford City Directory listed a previously unknown (to me) Corrigan living at 21 Chestnut Street:
Corrigan, Peter, laborer, b. r. 21 Chestnut
Peter Corrigan. Is he a brother to Lawrence? Is he a brother to William? Time and a few other records will tell.
I found one Peter and wife Annie living at 88 Walnut in Hartford by 1880. They are listed in the 1880 U. S. Census, but under the surname Carrigan:
Carrigan Peter, 34 years old, born Ireland [in about 1846]
Carrigan Annie, WIFE, 28 years old, born Ireland [in about 1852]
Carrigan Mary Jane, DAUGHTER, 1 year old, born Connecticut [in about 1879]:
