MP
Martha Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Henderson-County, Illinois
Our Model Tree links this Martha Peterson across the 1930 and 1940 US Censuses in Henderson-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 7-person household.
Age 19
b. ~1921
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Henderson-County, Illinois |
| Surname | Peterson |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Henderson |
| Additional Details | |
| Occupation | Waitress |
| Industry | Private cafe |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 235 |
| Highest Grade | H-4 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Waitress |
| Township / Ward | Stronghurst T |
| Est. Birth Year | ~1921 |
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 Martha | Age | Birth yr |
|---|---|---|---|---|
| Raymond Peterson | Son | — | 23 | ~1917 |
| Bonnie Peterson | Daughter | — | 10 | ~1930 |
| Oscar Peterson | Head | — | 47 | ~1893 |
| Harold Peterson | Son | — | 15 | ~1925 |
| Marnie Peterson | Spouse | — | 46 | ~1894 |
| Martha Peterson | Daughter | — | 19 | ~1921 |
| Edwin Peterson | Son | — | 7 | ~1933 |
Census Appearances
1930
Henderson, Illinois
Daughter, age 9
Henderson, Illinois · implied b. ~1921 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Henderson-County, Illinois
Daughter, age 19
Henderson-County, Illinois · implied b. ~1921 — 7 household members
| Surname | Peterson |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Henderson |
| Occupation | Waitress |
| Industry | Private cafe |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 235 |
| Highest Grade | H-4 |
| 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 Martha Peterson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Martha Peterson
Daughter · 1940 · age 19 · b. ~1921 · Illinois
★ You are viewing this record
Sibling
Raymond Peterson
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Peterson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edwin Peterson
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bonnie Peterson
Sibling · 1940 · age 10
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 — Henderson-County, Illinois
Open full size
1940 US Federal Census — Henderson-County, Illinois
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-00811-00277)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elnora Jones | 14 | Grand-daughter | — | Iowa |
| 2 | Eugene Jones | 12 | Grandson | — | Illinois |
| 3 | Martha Jones | 7 | Grand-daughter | — | Illinois |
| 4 | Thomas Jones | 5 | Grandson | — | Illinois |
| 5 | George Jones | 3 | Grandson | — | Illinois |
| 6 | Bruce Jones | 0 | Grandson | — | Illinois |
| 7 | Mace Pendleton | 40 | Head | Farm Operator | Illinois |
| 8 | Mary Pendleton | 35 | Wife | — | Illinois |
| 9 | Lyman Pendleton | 14 | Son | — | Illinois |
| 11 | Grant Huffman | 73 | Head | — | Iowa |
| 12 | Esther B. Huffman | 73 | Wife | — | England |
| 13 | Clarence Graham | 24 | Head | Farm Laborer | California |
| 14 | Ruth Graham | 23 | Wife | — | Illinois |
| 15 | Charles Graham | 3 | Son | — | Illinois |
| 17 | Oscar Peterson | 47 | Head | — | Illinois |
| 18 | Marnie Peterson | 46 | Wife | — | Illinois |
| 19 | Raymond Peterson | 23 | Son | Farm Laborer | Illinois |
| 20 | Martha Peterson THIS PERSON | 19 | Daughter | Waitress | Illinois |
| 21 | Harold Peterson | 15 | Son | — | Illinois |
| 22 | Bonnie Jean Peterson | 10 | Daughter | — | Illinois |
| 23 | Edwin Peterson | 7 | Son | — | Illinois |
| 24 | Edwin Blake | 61 | Head | Farm Operator | Illinois |
| 25 | Mary B. Blake | 56 | Wife | — | Illinois |
| 26 | Eugene Blake | 20 | Son | Farm Laborer | Illinois |
| 28 | Margaret Bolander | 60 | Head | — | Iowa |
| 29 | Harvey Bolander | 33 | Son | Laborer | Wyoming |
| 30 | Charles Waterman | 55 | Head | Paperhanger | Illinois |
| 31 | Sadie Waterman | 54 | Wife | — | Illinois |
| 32 | Glenn Waterman | 24 | Son | Paperhanger | Illinois |
| 33 | John Waterman | 15 | Son | — | Illinois |
| 34 | Charles H. Waterman | 33 | Son | Junk Peddler | Illinois |
| 35 | Margaret Waterman | 35 | Daughter-in-law | — | Missouri |
| 36 | Charles W. Waterman | 4 | Grandson | — | Illinois |
| 37 | George H. Waterman | 31 | Son | Farm Laborer | Illinois |
| 38 | Viola Waterman | 19 | Daughter-in-law | — | Illinois |
| 39 | Edith Waterman | 1 | Grand-daughter | — | Illinois |
| 40 | John Bundy | 20 | Boarder | Laborer | 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)