I am interested in locating more information or anyone related to Mary E. Foster and the following descendents. Mary E Foster first married David McElwee in 1823 then Elijah Slocumb in 1842. Mary and Elijah had Mary A Slocum in 1843. Mary Slocum married Andrew Laird and they had Helen Laird in 1866. Helen is my ggrandmother. Barbara Silva