I missed seeing your message earlier - my apologies.
The birth records for Alma Amelia Seaver and Abby Fidelia Seaver are in Gill on 14 May 1851, daughters of Elijah and Marilla (Minor) Seaver.They are in V51 p238 of the MA Birth VRs.
I believe that Elijah the father of Alma is the one born 9 Mar 1806 in Shelburne MA to Royal and Olive (Swan) Seaver.The line from the immigrant Robert Seaver is Robert1, Shubael2, Joseph3, Nathaniel4, Elijah5, Royal6, Elijah7.
I have some info on this line if you want to email me at firstname.lastname@example.org for more data.
Would you mind telling me who, when and where Alma Seaver married, and the names of their children?