Helen is Ferdinand and Henrietta’s ninth child and fourth daughter.

1910 US Census: Helen [5] is living with Ferdinand and Henrietta and presumably attending school.

1920 US Census: Helen [14] is living with Ferdinand and Henrietta and presumably attending school.

1930 US Census: Helen [28] and her husband Alvin Sellentin [24] are living in Madison, Nebraska. Alvin is working as a manager of a filling station and Helen is presumably a housewife.
*I’m not sure why Helen’s recorded age jumps 4 years between 1920 and 1930.

1940 US Census: Helen [38] and Alvin [34] are living in Madison, Nebraska with their two sons, Jerry Lee [3] and Thomas [infant]. Alvin is working as an attendant at a filling station and Helen is presumably a housewife.

1950 US Census: Helen [47] and Alvin [44] are living in Madison, Nebraska with Jerry Lee [13] and Thomas [11]. Alvin is working as an attendant at a filling station and Helen is presumably a housewife.

Helen dies in 1975 aged 69. Alvin dies in 1985 aged 83.