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Lillian Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · New-Castle-County, Delaware
Our Model Tree links this Lillian Peterson across the 1920, 1930 and 1940 US Censuses in New-Castle-County, Delaware (XGBoost, ~Confirmed) — first a spouse (b.~1893), then head of a 7-person household.
Age 47
b. ~1893
Female
Spouse
Born: Delaware
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | New-Castle-County, Delaware |
| Surname | Peterson |
| Given Name | Lillian |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Delaware |
| 1935 Residence (City) | Wilmington |
| 1935 Residence (County) | New Castle |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
| Township / Ward | Wilmington |
| Est. Birth Year | ~1893 |
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 Lillian | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Peterson | Daughter | — | 19 | ~1921 |
| Ann Peterson | Daughter | — | 8 | ~1932 |
| Betty Peterson | Daughter | — | 6 | ~1934 |
| George Peterson | Head | — | 64 | ~1876 |
| Lillian Peterson | Spouse | — | 47 | ~1893 |
| Miriam Peterson | Daughter | — | 23 | ~1917 |
| Henry Peterson | Son | — | 10 | ~1930 |
Census Appearances
1920
New Castle, …
Spouse, age 27
New Castle, Delaware · implied b. ~1893 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Lillian |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Delaware |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1930
New Castle, …
Spouse, age 37
New Castle, Delaware · implied b. ~1893 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Lillian |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Delaware |
| Age at First Marriage | 20 |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1940
New-Castle-County, Delaware
Spouse, age 47
New-Castle-County, Delaware · implied b. ~1893 — 7 household members
| Surname | Peterson |
| Given Name | Lillian |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Delaware |
| 1935 Residence (City) | Wilmington |
| 1935 Residence (County) | New Castle |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
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 Lillian Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Lillian Peterson
Spouse · 1940 · age 47 · b. ~1893 · Delaware
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — New-Castle-County, Delaware
Open full size
1940 US Federal Census — New-Castle-County, Delaware
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00550-00027)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Gerald Robinson | 34 | Lodger | Presser | Delaware |
| 42 | Georgia Robinson | 30 | Wife | — | Maryland |
| 43 | Hilda Robinson | 4 | Son | — | Delaware |
| 44 | Virgil Robinson | 6 | Daughter | — | Delaware |
| 45 | Rondal Robinson | 7 | Son | — | Delaware |
| 46 | Ralph Mason | 40 | Lodger | Helper | Maryland |
| 47 | Walter Nickelson | 35 | Lodger | Laborer | Maryland |
| 48 | Leroy Redding | 34 | Head | Garbageman | Delaware |
| 49 | Lillie Redding | 30 | Wife | Helper | Maryland |
| 50 | Audrey Redding | 16 | Daughter | — | Delaware |
| 51 | Janis Tildon | 49 | Head | Maid | Maryland |
| 52 | William Brooks | 12 | Nephew | — | Maryland |
| 53 | Parker Campbell | 46 | Head | Janitor | Virginia |
| 54 | Addie Campbell | 46 | Wife | Maid | Delaware |
| 55 | Cora Campbell | 20 | Daughter | Maid | Delaware |
| 56 | Parker Campbell | 18 | Son | — | Delaware |
| 57 | John Campbell | 16 | Son | — | Delaware |
| 58 | James Campbell | 14 | Son | — | Delaware |
| 59 | Frances Campbell | 12 | Son | — | Delaware |
| 60 | Marguerite Campbell | 9 | Daughter | — | Delaware |
| 61 | Elwood Campbell | 3 | Son | — | Delaware |
| 62 | Leon N Stafford | 25 | Head | Laborer | Delaware |
| 63 | Edith Stafford | 25 | Wife | Waitress | Pennsylvania |
| 64 | Elmer Evans | 48 | Head | Steward | Delaware |
| 65 | Hattie Evans | 46 | Wife | Laundress | Maryland |
| 66 | Edward Elms | 42 | Lodger | Laborer | N.C. |
| 67 | Madge Filsong | 38 | Lodger | Maid | Delaware |
| 68 | Carol Allen | 45 | Head | Shipping Clerk | Massachusetts |
| 69 | Dorothy Allen | 41 | Wife | — | Maryland |
| 70 | Carolyn Allen | 2 | Daughter | — | Delaware |
| 71 | George Peterson | 64 | Head | Janitor | Maryland |
| 72 | Lillian Peterson THIS PERSON | 47 | Wife | — | Delaware |
| 73 | Miriam Peterson | 23 | Daughter | Maid | Delaware |
| 74 | Elizabeth Peterson | 19 | Daughter | Maid | Delaware |
| 75 | Henry Peterson | 10 | Son | — | Delaware |
| 76 | Ann Peterson | 8 | Daughter | — | Delaware |
| 77 | Betty Peterson | 6 | Daughter | — | Delaware |
| 78 | William Morris | 42 | Head | Janitor | Maryland |
| 79 | Grace Morris | 38 | Wife | Maid | Delaware |
| 80 | Clifton Morris | 21 | Son | Mechanic | Delaware |
Related Census Records
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)