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Shirley Brown — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mercer-County, Illinois
Our Model Tree links this Shirley Brown across the 1930 and 1940 US Censuses in Mercer-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 7-person household.
Age 11
b. ~1929
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mercer-County, Illinois |
| Surname | Brown |
| Given Name | Shirley Anne |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Mercer |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Suez Township |
| Est. Birth Year | ~1929 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Shirley | Age | Birth yr |
|---|---|---|---|---|
| Mary Brown | Spouse | — | 30 | ~1910 |
| Marvin Brown | Son | — | 6 | ~1934 |
| Freddie Brown | Son | — | 1 | ~1939 |
| Lenora Brown | Daughter | — | 8 | ~1932 |
| Lee Brown | Head | — | 36 | ~1904 |
| John Brown | Son | — | 5 | ~1935 |
| Shirley Brown | Daughter | — | 11 | ~1929 |
Census Appearances
1930
Mercer, Illinois
Daughter, age 1
Mercer, Illinois · implied b. ~1929 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Shirley Ann |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Mercer-County, Illinois
Daughter, age 11
Mercer-County, Illinois · implied b. ~1929 — 7 household members
| Surname | Brown |
| Given Name | Shirley Anne |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Mercer |
| Highest Grade | No 5 |
| 1935 Residence | Illinois |
| 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 Shirley Brown across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Shirley Brown
Daughter · 1940 · age 11 · b. ~1929 · Illinois
★ You are viewing this record
Sibling
John Brown
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lenora Brown
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Freddie Brown
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marvin Brown
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Mercer-County, Illinois
Open full size
1940 US Federal Census — Mercer-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00858-00544)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | F. W. Morford | 74 | Head | — | Illinois |
| 2 | Cora B. Morford | 72 | Wife | — | Illinois |
| 3 | Charles Wertz | 56 | Head | Laborer | Penn |
| 4 | Emma E. Wertz | 51 | Wife | — | Penn |
| 5 | John Kugler | 51 | Head | Blind | Illinois |
| 6 | Harvelle Kugler | 31 | Wife | — | Illinois |
| 7 | Nellie Olin | 39 | Head | — | Illinois |
| 8 | Wilma Olin | 33 | Daughter | — | Illinois |
| 9 | Lester Hunter | 44 | Head | — | Missouri |
| 10 | William Jr. Hunter | 20 | Son | Laborer | Illinois |
| 11 | Betty Jane Hunter | 17 | Daughter | — | Illinois |
| 12 | James Richard Hunter | 15 | Son | — | Illinois |
| 13 | John Dudley Hunter | 8 | Son | — | Illinois |
| 14 | Louis Grassmiller | 44 | Head | Laborer | Illinois |
| 15 | Evan Greer | 62 | Head | — | Missouri |
| 16 | Harry Palmer | 51 | Head | Laborer | Illinois |
| 17 | Ollie Palmer | 50 | Wife | Telephone Oper. | Illinois |
| 18 | Wayne Palmer | 19 | Son | Laborer | Illinois |
| 19 | Lee Brown | 36 | Head | 12 | Illinois |
| 20 | Mary Brown | 30 | Wife | — | Illinois |
| 21 | Shirley Anne Brown THIS PERSON | 11 | Daughter | — | Illinois |
| 22 | Lenora Belle Brown | 8 | Daughter | — | Illinois |
| 23 | Marvin Lee Brown | 6 | Son | — | Illinois |
| 24 | John Richard Brown | 5 | Son | — | Illinois |
| 25 | Freddie Bill Brown | 1 | Son | — | Illinois |
| 26 | Ronald Brown | 44 | Head | Mechanic | Illinois |
| 27 | Mildred Brown | 32 | Wife | — | Illinois |
| 28 | William Dillick | 21 | Lodger | Mechanic | Illinois |
| 29 | Evan Greer | 62 | Head | Decorator | Illinois |
| 30 | Mable Greer | 54 | Wife | — | Nebraska |
| 31 | Seldon Greer | 23 | Son | — | Illinois |
| 32 | George A. Riley | 70 | Head | — | Illinois |
| 33 | Mary L. Riley | 50 | Wife | Teacher | Illinois |
| 34 | Mona Palmer | 45 | Head | Telephone Oper. | Illinois |
| 35 | Alice Mc Laughlin | 72 | Head | — | Illinois |
| 36 | Bert, Sr. Lafferty | 44 | Head | Farm Laborer | Illinois |
| 37 | Bernice Lafferty | 44 | Wife | — | Illinois |
| 38 | Bert, Jr. Lafferty | 18 | Son | Farm Laborer | Illinois |
| 39 | Irene Lafferty | 16 | Daughter | — | Illinois |
| 40 | William Lafferty | 14 | Son | — | Illinois |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)