I think, but am not sure, that Martha may be the name for the initial M. because that name is listed on the 1920 census record.
© Omaha World-Herald; Omaha, Nebraska; Monday, January 24, 1972, page 30
WHITNEY--Mrs. H. L. (Jean); age 87 years; Nebraska City. Survived by brother, Loyal Shannon, Nebraska City.
Graveside services at Prospect Hill Cemetery near Elkhorn, Neb., Monday, at 2 p.m.
Hamlin Lawrence Whitney
1863–1944 (m. 1908)
Loyal Edward Shannon
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