Just going by the 1920 and 1930 census, and the obituary for Lemon on findagrave, these are the children of Auther Manch ERVING that I can see (dates approximate):
1911 Dilly
1911 Peter
1913 Lemon
1915 Leola
1917 Jessie
1918 Mary Ann
1919 Adell
1921 Ellis
1932 Lizzie Mae
?? Lunnie
Jessie (1917) is on the 1920 census, but not 1930, and not mentioned in the obituary - presumably she died young.
I would assume that since all the children up to Ellis are with their father in 1930, their mother Esther/Estelle either left or died between 1921 and 1930, Auther Manch does say widowed.