No Ruth Seeley is not the same as Ruth Mahar. Ruth Seeley died in child birth Oct 23, 1897and is buried in Calais Cemetery next to her new born daughter (Ruth) who died 10 days after her mother.
Thomas Crowley and Ruth Seeley's children were as follows:
Emma Crowley born 1877 died 1889
Bessie May Crowley (Frost) born 1879 died 1950
Maude Crowley born 1885 - 1905
When Ruth died Bessie, Maude and Edna were boarded in Boston, MA.
Edna Louise Crowley (Dugan) born 1889 died 1940 (mother's grandmother)
Harold Crowley born 1891 died in drowing accident 1911
Ruth C Crowley born 1897 died at 10 days old 1897