Online DC #59-044747 shows Eva Ethel Johnson, born Dec 12, 1884 [1894], age 65, in Illinois. Married at death to Ray Johnson, Vienna, MO. Parents not named on Certificate. Died Dec 17, 1959 in Maries, Jackson Township, MO in her home. Cause of death: Carcinoma of Thyroid with Metastes to the Skull. Ray Johnson, Vienna, MO informant on DC. Burial in Union Hill Cemetery on Dec 20, 1959.
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Marriage, Maries Co, MO: Fieldon R Johnson, age 54 and Eva Ethel Anderson, age 58, both from Maries Co, MO, married 13 Aug 1954 in Vienna, Maries Co, MO.
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I believe this Eva was born Eva Ethel Osman. I found a delayed birth certificate for her:
Effingham, Effingham Co, Illinois, USA James Osman, her brother, was the informant for this birth certificate. The certificate gives her birth as 12/12/1894.
Could you connect her to her parents are William Phineas Osman--#49958646 and Malinda Alvis Osman--#49958883
If you go to the memorial for William, you will find his obituary listing his family members.

Eva Osman was married numerous times. She first was married to Charles Rufus Clifton, probably in Kansas, about 1919-1920. They were married for many years and divorced about 1947. Both of them remarried.
Eva Clifton then was married to Luther Elbert Colclasure on the 9 June 1947 in Washington Co, Arkansas. (Film # 2020348) Luther died on the 24 September 1951 in Granby, Newton, Missouri. I believe that Luther was born as Luther Merritt, but it appears that he used the last name of his Step-grandfather instead.
Eva Colclasure then has 2 marriage licenses for marriage to Frank Arthur Anderson. One for 28 December 1951 in Benton, Arkansas and the second one for 18 June 1952 in Benton, Arkansas. Don't know if they backed out the first time or if they married twice. Their residence was given as Hillcrest, Newton, Missouri. Sounds like this marriage was off to a bad start. Eva Anderson then married Fieldon R. Johnson as you noted. I will see if I can locate an obit for Eva. This has been a long road tracking her down since she had no children. Thanks, Helen Weaver
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Home in 1940: Arkansas City, Cowley KS
Resid. in 1935: Arkansas City, Cowley KS
Charles R Clifton 56 mar. IL
Eva Clifton 45 wf mar IL
Gillie I Clifton 26 son sgl KS

Home in 1930: Arkansas, Cowley, KS
Charles Clifton 46 mar age 36 IL
Eva Clifton 34 wf mar age 24 IL
Gillie Clifton 16 son sgl KS
Grace Stouffer sil 19 sgl MO

Kansas State Census Date: 1925
County: Cowley, KS
Charles Clifton 40 mar IL
*Eva Clifton 30 wf mar IL
Gillie Clifton 11 son KS

Home in 1910: Mason, Effingham, IL
William Osman 53 mar1 30y IL
Malinda Osman 50 wf mar1 7/6 ch IL
*Eva Osman 15 dau sgl IL
Fay Osman 7 dau IL

Home in 1900: Mason, Effingham, IL
Wm Osman 43 Mar 1857 mar 22y IL
Malinda Osman 40 wf May 1860 4/4 ch IL
Everett Osman 20 son Apr 1880 sgl IL
Lottie Osman 18 dau Jan 1882 sgl IL
James Osman 15 son Oct 1884 IL
*Eva Osman 5 dau Mar 1895 IL