There is a tree on ancestry, "The TYLER Ancestry Tree, owner: KenTyler (active as of today) who has the family of Samuel MOORE and Ann CURTIS with their six children. You might try contacting him to see if he has made the connection.
Delmont is in the 1870 Census listed as Delmont MORRE with his wife Caroline M born 1840 New Hampshire and daughter, Carrie E born 1866 in Maine.
Caroline "Carrie" M Varney Moore died 19 May 1881 in Boston, Suffolk County, Massachusetts according to the Massachusetts Death Index on familysearch.org.
Also, Maine birth record for Delmont MOORE on familysearch.org shows his birth as 22 September 1835 in Prospect, Waldo County, Maine.
His mother's maiden name came from a death record for one of Delmont's siblings, Wilda F Moore STOUT who died in 1930.
If you find proof that D.A. MORE is Delmont MOORE, son of Samuel MOORE and Ann CURTIS, please let me know. His memorial is posted on Find A Grave and I've been trying to help prove the connection.