I have a little information on the family of Hannah Elizabeth Long; her sister, Gertrude Rosa Long was a wife to my great-grandfather Henry Y. Freeman. After living and starting a family in Portales, New Mexico (each had previously been married and had children, also), they moved later to the Cortez, Colorado area. I searched for genealogy records on William and Hannah Gagan at RootsWeb.com and at Family Search.org and found only this entry at FS.org: William and Hannah were married on 7 Dec., 1881 in Butler Co., Kansas. I also found Hannah and Gertrude, along with their siblings, listed with their mother, Salina (now a widow), living in Douglas, Butler, Kansas for the 1880 Census. If I come across any further info., i'll be sure to contact you later. Have you done a Google search on your Gagan family? Is there a specific question about your family that you've been researching? Good luck!