MC
Margaret Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Macon-County, Illinois
Our Model Tree links this Margaret Clark across the 1920, 1930 and 1940 US Censuses in Macon-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1859), then head of a 4-person household.
Age 81
b. ~1859
Female
Head
Born: Indiana
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Macon-County, Illinois |
| Surname | Clark |
| Given Name | Margaret A |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 81 |
| Marital Status | Widowed |
| Birthplace | Indiana |
| 1935 Residence (City) | Decatur |
| 1935 Residence (County) | Macon |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 5 |
| 1935 Residence | Same house |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Decatur |
| Est. Birth Year | ~1859 |
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 |
|---|---|---|---|---|
| Bertha Catlin | Daughter | — | 49 | ~1891 |
| Grace Catlin | Daughter | — | 18 | ~1922 |
| Margaret Clark | Head | — | 81 | ~1859 |
| Leroy Catlin | Son | — | 19 | ~1921 |
Census Appearances
1920
Macon, Illinois
Spouse, age 60
Macon, Illinois · implied b. ~1860 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Indiana |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Kentucky |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Mason, Illinois
Spouse, age 71
Mason, Illinois · implied b. ~1859 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 25 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Macon-County, Illinois
Head, age 81
Macon-County, Illinois · implied b. ~1859 — 4 household members
| Surname | Clark |
| Given Name | Margaret A |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 81 |
| Marital Status | Widowed |
| Birthplace | Indiana |
| 1935 Residence (City) | Decatur |
| 1935 Residence (County) | Macon |
| Income (1939) | 0 |
| Highest Grade | 5 |
| 1935 Residence | Same house |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Clark across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Clark
Head · 1940 · age 81 · b. ~1859 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Macon-County, Illinois
Open full size
1940 US Federal Census — Macon-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00843-00499)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Robert W Mathes | 15 | Son | — | Indiana |
| 42 | James P Mathes | 13 | Son | — | Indiana |
| 43 | Ida M Mathes | 10 | Daughter | — | Indiana |
| 44 | Herbert L Mathes | 21 | Son | Buffer | Indiana |
| 45 | June J Mathes | 18 | Wife | — | Illinois |
| 46 | Judy A Mathes | 1 | Daughter | — | Illinois |
| 47 | Markos Martios | 46 | Head | Business Man | Greece |
| 48 | Mary Martios | 30 | Wife | — | Greece |
| 49 | George Martios | 9 | Son | — | Greece |
| 50 | Esther Martios | 1 | Daughter | — | Illinois |
| 51 | Eltahia Martios | None | Extra-line | — | — |
| 52 | Pearl J King | 56 | Mother-in-law | — | Illinois |
| 53 | John Clark | 63 | Head | Relief Man | Pennsylvania |
| 54 | Anna E Clark | 61 | Wife | — | Illinois |
| 55 | Louis R Clark | 41 | Son | Chief Clerk | Illinois |
| 56 | Helen J Clark | 39 | Daughter | Nurse | Illinois |
| 57 | Kathryn A Clark | 31 | Daughter | Telephone Operator | Illinois |
| 58 | William R Clark | 14 | Son | — | Illinois |
| 59 | William J Moore | 41 | Head | Switchman | Illinois |
| 60 | Vivian V Moore | 34 | Wife | — | Illinois |
| 61 | Doris L Moore | 14 | Daughter | — | Illinois |
| 62 | Robert L Moore | 2 | Son | — | Illinois |
| 63 | George Kelly | 61 | Head | Inspector | Illinois |
| 64 | Ella Kelly | 59 | Wife | — | Illinois |
| 65 | Hough George Kelly | 30 | Son | Molder | Illinois |
| 66 | Marie H Kelly | 25 | Wife | — | Illinois |
| 67 | Norma L Kelly | 5 | Daughter | — | Illinois |
| 68 | Bryan E Hanks | 76 | Head | Trucker | Illinois |
| 69 | Sadie B.B. Hanks | 74 | Wife | — | New York |
| 70 | Benjamin Smitherman | 32 | Head | Truck Driver | Arkansas |
| 71 | Gertrude Smitherman | 24 | Wife | — | Illinois |
| 72 | George Massingale | 5 | Son | — | Illinois |
| 73 | Ronald M Armstrong | 42 | Head | Fireman | Illinois |
| 74 | Thelma A Armstrong | 25 | Wife | — | Illinois |
| 75 | Margaret A Clark THIS PERSON | 81 | Head | — | Indiana |
| 76 | Bertha M Catlin | 49 | Daughter | — | Illinois |
| 77 | Leroy L Catlin | 19 | Son | Machinist | Illinois |
| 78 | Grace E Catlin | 18 | Daughter | — | Illinois |
| 79 | Thomas A Meese | 38 | Head | Laborer | Kentucky |
| 80 | Josephine Meese | 33 | Wife | — | Indiana |
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)