Hi David,
I found my material and have a family photo. Yes 6 girls and 1 boy. This informaiton is in the copies I have from The Dennison Family of North Yarmouth and Freeport, Maine, Decsended from George Dennison, 1699-1747. In this copy is a typed page showing our family line from Rufus Dennison, then his daughter Cornelia Dennision( B:2-17-1829,D: 3-14-1889) married to James E. Gammon who had Guy Dennison Gammon who married Louisa Berg in 1891 in Dodge City KS. They had 6 girls- Gertrude, Irene, Freda, who gave me all this material, Marie, Geneva (my Dad's favorite aunt), Eugenia, and Guy Jr. who they called Sonny. Guy Balcom Gammon was born on 11-12-06.
I can make a copy of this and mail it to you if you like.
Thanks,
Myra