Received a response regarding children of Mary Thwaits and Swetland Dockum (called Sweetland Dockum in Civil War Pension Application).
"According to my records, Swetland Dockum m. Mary Thwaits and had eight children:Sarah Ann Dockum who m. John Dorwin Phillips;Cassius Dockum, b. abt. 1875;Margaret Dockum;Julia Dockum;John Dockum, b. abt. 1881;Thomas Dockum, b. abt. 1858;MARTHA DOCKUM;William Dockum, b. abt. 1853.
I don't have a husband for Martha, but it could be a Sears"..... husband says "when he was a boy he used to visit some relatives by the name of Sears in Saranac Lake."