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Frank Brooks — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Mason, Illinois
Our Model Tree links this Frank Brooks across the 1920, 1930 and 1940 US Censuses in Mason, Illinois (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 8-person household.
Age 43
b. ~1887
Male
Head
Born: Illinois
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Mason, Illinois |
| Surname | Brooks |
| Given Name | Frank C |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 20 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | O |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farmer |
| Township / Ward | Pennsylvania Township |
| Est. Birth Year | ~1887 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Lyle Brooks | Son | — | 16 | ~1914 |
| Robert Brooks | Son | — | 5 | ~1925 |
| Mary Brooks | Daughter | — | 11 | ~1919 |
| Marjorie Brooks | Daughter | — | 14 | ~1916 |
| Frank Brooks | Head | — | 43 | ~1887 |
| Mildred Brooks | Daughter | — | 8 | ~1922 |
| Claire Brooks | Son | — | 20 | ~1910 |
| Grace Brooks | Other | — | 44 | ~1886 |
Census Appearances
1920
Mason, Illinois
Head, age 33
Mason, Illinois · implied b. ~1887 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | Frank |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Farmer |
| Industry | Grain farm |
| Class of Worker | Em |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Mason, Illinois
Head, age 43
Mason, Illinois · implied b. ~1887 — 8 household members
| Surname | Brooks |
| Given Name | Frank C |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 20 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Ireland |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | O |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Mason-County, Illinois
Head, age 53
Mason-County, Illinois · implied b. ~1887 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooke |
| Given Name | Frank |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Pennsylvania Twp |
| 1935 Residence (County) | Mason |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Frank Brooks across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Frank Brooks
Head · 1930 · age 43 · b. ~1887 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Mason, Illinois
Open full size
1930 US Federal Census — Mason, Illinois
Page Contents
23 people indexed on this census page (ia:1930:illinoiscensus00reel537:0505)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Donald R Keith | 8 | Son | Farmer | Illinois |
| 52 | Harold F Keith | 5 | Son | — | Illinois |
| 53 | Dorothy L Keith | 1 | Daughter | — | Illinois |
| 54 | Nora E Mulford | 57 | Mother in Law | — | Illinois |
| 55 | Cary Davenport | 25 | Head | Laborer | Kentucky |
| 56 | Icy Davenport | 26 | Wife-H | — | Indiana |
| 57 | Melvin Davenport | 1 | Son | — | Illinois |
| 58 | Frank C Brooks THIS PERSON | 43 | Head | Farmer | Illinois |
| 59 | Grace B Brooks | 44 | Wife-H | — | Illinois |
| 60 | Claire F Brooks | 20 | Son | Laborer | Illinois |
| 61 | Lyle Brooks | 16 | Son | Laborer | Illinois |
| 62 | Marjorie A Brooks | 14 | Daughter | — | Illinois |
| 63 | Mary L Brooks | 11 | Daughter | — | Illinois |
| 64 | Mildred E Brooks | 8 | Daughter | — | Illinois |
| 65 | Robert N Brooks | 5 | Son | — | Illinois |
| 66 | Claude J Martin | 40 | Head | Farmer | Indiana |
| 67 | Ida J Martin | 38 | Wife-H | — | Illinois |
| 68 | John L Martin | 13 | Son | — | Illinois |
| 69 | Stanley C Martin | 5 | Son | — | Illinois |
| 70 | Lena Jones | 58 | Mother in Law | — | Kentucky |
| 71 | Fred H King | 21 | Cousin | Laborer | Germany |
| 72 | Reerink | None | — | — | — |
| 73 | Albert P Reerink | 34 | Head | Laborer | Illinois |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)