About William Ruhmkorff
Found on 1910 Census. Series: T624 Roll: 319 Page: 176.
Found on 1920 Census. Series: T625 Roll: 396 Page: 123
Grew up with Aunt and Uncle (listed as nephew on census). Uncle is listed as Ferdinand Scheele Sr. and Aunt is Minnie Scheele.
Purely speculating, but noted that his birth was around same time as mother's death. Did she die as a result of giving birth? Also found it interesting that he grew up with aunt and uncle, but father still lived in area (1920 Census shows that father lived with his son and son's wife).
Got birth and death dates from: