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Margaret Grant — 1940 US Census Record
Model Tree available1940 United States Federal Census · Will-County, Illinois
Our Model Tree links this Margaret Grant across the 1920, 1930 and 1940 US Censuses in Will-County, Illinois (XGBoost, ~Confirmed), with identified parents Charles & Charlie — first a daughter (b.~1911), then head of a 4-person household.
Age 29
b. ~1911
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Will-County, Illinois |
| Surname | Grant |
| Given Name | Margaret M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Joliet |
| 1935 Residence (County) | Will |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Joliet |
| Est. Birth Year | ~1911 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Catherine Grant | Daughter | — | 27 | ~1913 |
| Margaret Grant | Daughter | — | 29 | ~1911 |
| Charles Grant | Head | — | 71 | ~1869 |
| Jeanet Grant | Spouse | — | 64 | ~1876 |
Census Appearances
1920
Will, Illinois
Daughter, age 9
Will, Illinois · implied b. ~1911 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grant |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Will, Illinois
Daughter, age 19
Will, Illinois · implied b. ~1911 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grant |
| Given Name | Margaret M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Will-County, Illinois
Daughter, age 29
Will-County, Illinois · implied b. ~1911 — 4 household members
| Surname | Grant |
| Given Name | Margaret M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Joliet |
| 1935 Residence (County) | Will |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Margaret Grant across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Grant (~0.92 confidence) and father Charlie Grant (~0.92 confidence) and father John Grant (~0.92 confidence) and mother Annie Grant (~0.92 confidence) and mother Jane Grant (~0.92 confidence) and mother Jeanet Grant (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Grant
b. ~1869
Source father
● Household
· direct · ~0.92
Father
Charlie Grant
b. ~1870
Source father
● Household
· direct · ~0.92
Father
John Grant
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Annie Grant
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Jane Grant
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Jeanet Grant
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Grant
Daughter · 1940 · age 29 · b. ~1911 · Illinois
★ You are viewing this record
Sibling
Catherine Grant
Sibling · 1940 · age 27
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 — Will-County, Illinois
Open full size
1940 US Federal Census — Will-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00907-01061)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Florence E. Chalstrom | 47 | Daughter | Office Clerk | Illinois |
| 42 | Gilbert E. Chalstrom | 33 | Son | Sales Mgr. | Illinois |
| 43 | Phyllis L. Chalstrom | 21 | Daughter | Student | Illinois |
| 44 | Mabel Wilhoit | 27 | Maid | Maid | Illinois |
| 45 | Earl Murrell | 35 | Head | Machinist | Sweden |
| 46 | Evelyn Murrell | 31 | Wife | — | Scotland |
| 47 | William Murrell | 5 | Son | — | Illinois |
| 48 | Paul Ohman | 46 | Head | Agent-Broker | Illinois |
| 49 | Lelia J. Ohman | 47 | Wife | — | Illinois |
| 50 | Ray Ohman | 19 | Son | — | Illinois |
| 51 | Clifton Ohman | 17 | Son | — | Illinois |
| 52 | Lelia Ohman | 12 | Daughter | — | Illinois |
| 53 | Earl Ohman | 9 | Son | — | Illinois |
| 54 | Julia Jordan | 79 | Mother-in-law | — | Illinois |
| 55 | Robert Mccallum | 58 | Head | Manager | Illinois |
| 56 | Louise Mccallum | 52 | Wife | — | Iowa |
| 57 | Marjorie Mccallum | 34 | Daughter | Designer | Illinois |
| 58 | William Mccallum | 65 | Brother | — | Illinois |
| 59 | Bonnie Mccallum | 8 | Granddaughter | — | California |
| 60 | Marjorie Mccallum | 5 | Granddaughter | — | California |
| 61 | Lunetta Weishaar | 67 | Head | — | Illinois |
| 62 | Charles H. Grant | 71 | Head | Foreman-Millwright | Scotland |
| 63 | Jeanet Grant | 64 | Wife | — | Illinois |
| 64 | Margaret M. Grant THIS PERSON | 29 | Daughter | — | Iowa |
| 65 | Catherine G. Grant | 27 | Daughter | Stenographer | Iowa |
| 66 | Rosa Holzhaur | 77 | Head | — | Wisconsin |
| 67 | Mary Wetzler | 63 | Housekeeper | Housekeeper | Illinois |
| 68 | Francis Mcfadden | 35 | Head | Manager | Illinois |
| 69 | Lucille Mcfadden | 31 | Wife | — | Illinois |
| 70 | Joseph Mcfadden | 8 | Son | — | Illinois |
| 71 | Patricia Ann Mcfadden | 5 | Daughter | — | Illinois |
| 72 | Kathleen Mcfadden | 1 | Daughter | — | Illinois |
| 73 | Melvin Marks | 32 | Head | Store Mgr. | Wisconsin |
| 74 | Sue Marks | 32 | Wife | — | Illinois |
| 75 | Harry L. Marks | 4 | Son | — | Illinois |
| 76 | Anna Briscoe | 30 | Head | Saleslady | Illinois |
| 77 | John Briscoe | 59 | Brother | — | Illinois |
| 78 | William Briscoe | 48 | Brother | Guard | Illinois |
| 79 | Andrew Briscoe | 45 | Brother | Farm Hand | Illinois |
| 80 | Laura Briscoe | 41 | Sister | School Teacher | Illinois |
Pedigree Summary
Margaret + 1 sibling
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
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)