Although you've been a "member" since 2005, this appears to be your first Rootsweb message, at least under this user name. There is so many ways to obtain information on various persons you seek, US Census, State records, books, etc. I reviewed your posted family tree and see very little information about these persons. I'd suggest beginning with your own family and begin detailed information on your family tree. Identify birth and death records, obtain obituaries, etc. I'll provide a bit of information to first add to and correct information provided:
The 1930 Census of Janesville, Rock County, Wisconsin, enumerated April 11th.
Lyle Dix, age 32 born in Wisconsin to both parents born in WI, employment: Trucking and "cleaning" (not clerking), owned his business. Renting at 606 1/2 South Pearl at $8.00 a month. First married age 19 (1916/1917)
Edna, age 23, born in WI to both parents born in WI, first married age 18 (1924/1925).
Berniece, age 10
Richard, age 4 /10/12 (based on April 11 enumeration, Richard born about May/June 1925...if enumerator was accurate).
Adeline, 2 11/12 (about April/May 1917)
Russel (as written), age 1 7/12 (about Aug/Sep 1918).
---Living at 606 South Pearl (Same property, not neighbors, possibly an out building, separate apartment, etc).
Arthur Dix, owner of the property, age 71 born in WI to both parents born in WI, Stemmer/Tabacco Warehouse/worker (not owner).
Mary, 66, born in WI to father born in Indiana, mother in Pennsylvania, Stemmer/Tabacco Warehouse/Worker.
Robert, grandson, age 8
--Also living at 606 S. Pearl (Same property) Renting:
Frank Artolen, renting $10.00 per month, age 40 (1889/1890) born in Italy to both parents born in Italy, immigrated 1903 (age 12/13), laundry (worker), first married age 34(1923/1924)
Grace, age 38 (1891/1892), born in WI to father born in Michigan, mother in WI, first married age 17(1908/1909).
Helen Hoover, step-daughter (to Frank), age 16,
Arthur, step-son, 14
Elizabeth, step-dau, 8 (all children born in WI to both parents born in WI)
---As you may know, the Great Depression began (dated) in Oct 1929. It appears Lyle was living with his parents in April 1930, this may or may not be related to the start of the Depression. Arthur was also renting out part of his house to another family, this was the family of daugher Grace.
The 1920 Census for Janesville, Rock Co, WI, enumerated 20 January.
Lyle Dix, age 22, born in WI to boh parents born in WI, Renting at 618 S. Washington, house painter.
Beatrice, age 21, born in WI to both parents born in WI
Bernice (as written), age 1/12 (born Dec 1919)
---Also renting at 618 S. WA
Arthur Dix, age 69, born in Wisconsin to both parents born in Indiana, laborer/city.
Mary, age 57, born in WI to father born in Indiana, mother in PA, sorter/tabacco company
Raymond, son, age 18, born in WI, laborer/woolen mill.
---Also renting at 618 S. WA
Edward Hoover, age 42, born in WI to father born in PA mother in NY, barber/barber shop/worker
Grace, 28, born in WI to both parents born in WI
Helen, age 6
Earl, age 4 1/12 (Nov/Dec 1915)
Arthur, 2 0?/12.
There are a number of family trees posted on this family. You can access them if you have an Ancestry.com membership, or at your local library using their access to the library version using your library card on their computers.
These trees show Lyle was born 17 June 1897 in Chippewa Falls, WI, son of Arthur and Mary (Privett), died 9 Oct 1978 in Janesville.
He was first married to Beatrice and had a a daughter (living) and son, son Robert Artur Dix (1922-1995). He was then married to Edna Rose Marie Hill, 1906-1970, children Richard Charles 1925-1993; Russell Eugene 1928-2008; Roger Dewayne 1932-2010, and a daughter shown as living.
There is so much information on this family available.