Found these obits, but none for Seymore:

Gloria

The Joplin Globe, Sunday, Nov. 28, 1971, p. 5D
MRS. JENNIE GILBERT
Services for Mrs. Jennie Mary Gilbert, 90, 907 E. 2nd St., who died Friday at her home, will be at 10:30 a.m. Monday at Parker Chapel.
The Rev. Thurman D. Kelley will officiate. Burial will be in Ozark Memorial Park Cemetery.
Pallbearers will be Olen Cox, Floyd Garber, Earl Smith, Roy Willis, Gene White and Howard Shuey.
Survivors include a daughter, Mrs. Jesse Wharton, of the home. She was incorrectly listed as Mrs. Whorton in Saturday's Globe.
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The Joplin Globe, Saturday, April 17, 1971, p. 5B
MRS. BESSIE WILLIS
Mrs. Bessie F. Willis, 52, 907 E. 2nd St., died at 7 a.m. Friday at her home following an illness of several months.
Mrs. Willis was born Jan. 8, 1919, in Joplin, and had lived here her entire lifetime. She was a member of the Baptist church.
Survivors include her mother, Mrs. Jennie Gilbert, 907 E. 2nd St.; a daughter, Mrs. Delores Lee, 1036 Kentucky Ave.; a twin sister, Mrs. Jessie Wharton, 907 E. 2nd St.; a brother, Kenneth J. Gilbert, 1819 Harlem Ave.; five grandchildren and three great-grandchildren.
Services will be at 3:30 p.m. today at Parker Mortuary. The Rev. Thurman D. Kelley will officiate. Burial will be in Ozark Memorial Park Cemetery.
Pallbearers will be Bill Lee, Earl Smith, Noel Smith, Jerry Burden, Carl Johnson and Leo Young.