Hi Erin
The IGI, incorrectly or not, has them as STEVENS, and Sarah as nee: Sarah E SNYDER. Was looking for ages & birthplaces to help locate in 1910 - and found them first on 1930 as STEVENS - According to this their son Paul wasn't born until abt 1915, but a son Sylvester was born bf 1910:
1930 - Salem Twp, Washing Cty, Ohio StateREF: Roll: 1887; Page: 5A; Enumeration District: 30
Head: Valentine STEVENS 56, first married at age 34. Occ: Teamster - Oil Field.
Wife: Sarah E STEVENS 54, first married at age 32.
Son: Sylvester STEVENS 21, single, (no occupation stated but YES - attending school)
Son: Marion L STEVENS 18, single, Laborer - Farm
Son: Paul STEVENS 15, (YES - attending school)
Valentine owns their home and they were all born in Ohio of Ohioan parents
I'm thinking son Marion L - is very possibly the son Lloyd you have record of - ie Marion Lloyd.
Here they are in 1910 - and it is......... interesting!!!
1910 - Flag Precinct, Noble Cty, Ohio State:REF Roll: T624_1222; Page: 3A; Enumeration District: 113
Head: Valentine STEVENS 36, 2nd Marriage. Present marriage 5 yrs, Farmer - General Farm.
Wife: Sarah E STEVENS 33, 1st marriage, Present Marriage 5 years.
Son: Alva A STEVENS 14, Farm Laborer - Home Farm.
StepSon: Lawrence KEYLOR 11
Son: Leslie O STEVENS 9
Dau: Ina (Iva?) O STEVENS 6
Dau: Stella L STEVENS 3
Son: Sylvester STEVENS 11 months
All born Ohio of Ohioan parents.
Valentine owns the farm with a Mortgage.
According to the Census, Sarah has given birth to 6 children, all of whom are still living.
The enumerator visitation number for them was 29.
Next family visited was nr 30 - and I suspect (only!) that they are in the same household or Farm, and are Valentine's parents:
Head: Sylvester STEVENS age 64, married once for 40 yrs.
Wife: Lyddia STEVENS 58, married once for 40 yrs, has birthed 11 children, 6 still living.
Dau: Viola STEVENS 21, single, Occ: Housekeeper (to) Private Family
Dau: Sarah E STEVENS 16
Grandson: Edward E STEVENS 3
All born in Ohio; All with Ohioan parents except Lyddia's mother who was born Delaware.
I can see them in Salem Washington Cty Ohio in 1920 (and Valentine's suspected parents Sylvester & Lyddia are in Muskingum, Washington Cty, Ohio)' I'll post them in a sec, as from what I can read, you don't already have it.....

Cheers
AMBLY