I am also researching the Carrigan family in Alabama. William H. Carrigan was my 2nd Gr. Grandfather. His daughter, Anna Snow Carrigan was my maternal grandmother's (Zona Carrigan Ayers) mother. They lived in the Canal Zone. Zona married Ben F. Kuller Jr. and they moved back to the States in the early 1950's, eventually settling in Oregon.
Any information you can share on the Carrigan line would be much appreciated.