ER sez sources for info:
Pension & military records for Philip, David, & Benjamin from Civil War.
Local records for others. Probate records for deaths of Peter and David. Census records Lake & Porter Counties, IN 1850-1870.

Peter lived in Vermont for several years after Abigail’s death; when he moved to Canada, he sold his property with the stipulation that J.C. Stevens, Abigail’s father, could live there the rest of his life.124

Peter and family moved to Wheeler IN from Canada in 184079

Lived near Kingston, near “Thousand Islands” area, when in Canada79

McCurdy has marriage date of 1836: “This is probably the 4 July 1836 marriage at Bayham Twp of Peter K. or H. Loucks to Diantha Christian[then].120

Hobart Twp, Lake Co for Ancestry census images