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Mary Morrow — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Vermilion-County, Illinois
Our Model Tree links this Mary Morrow across the 1930 and 1940 US Censuses in Vermilion-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 10-person household.
Age 11
b. ~1929
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Vermilion-County, Illinois |
| Surname | Morrow |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Blount Township |
| 1935 Residence (County) | Vermilion |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Blount 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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Leona Lovett | Daughter | — | 22 | ~1918 |
| Mary Morrow | Daughter | — | 11 | ~1929 |
| Charles Lovett | Other | — | 1 | ~1939 |
| Ruby Morrow | Daughter | — | 20 | ~1920 |
| Glen Morrow | Son | — | 13 | ~1927 |
| Minnie Morrow | Spouse | — | 53 | ~1887 |
| Helen Morrow | Daughter | — | 15 | ~1925 |
| Jacob Morrow | Son | — | 17 | ~1923 |
| Jacob Morrow | Head | — | 48 | ~1892 |
| Roy Morrow | Son | — | 18 | ~1922 |
Census Appearances
1930
Vermilion, Illinois
Daughter, age 1
Vermilion, Illinois · implied b. ~1929 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Morrow |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Age at First Marriage | 1 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Vermilion-County, Illinois
Daughter, age 11
Vermilion-County, Illinois · implied b. ~1929 — 10 household members
| Surname | Morrow |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Blount Township |
| 1935 Residence (County) | Vermilion |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| 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 Mary Morrow across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Morrow
Daughter · 1940 · age 11 · b. ~1929 · Illinois
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Sibling
Jacob Morrow
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leona Lovett
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruby Morrow
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Morrow
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Glen Morrow
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roy Morrow
Sibling · 1940 · age 18
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 — Vermilion-County, Illinois
Open full size
1940 US Federal Census — Vermilion-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00897-00033)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jacob H. Mertz | 71 | Head | Farmer | Maryland |
| 42 | Lester Mertz | 23 | son | Farmer | Illinois |
| 43 | Thelma Mertz | 20 | daughter | — | Illinois |
| 44 | Theodore Mertz | 18 | son | Laborer | Illinois |
| 45 | Elmer Mertz | 15 | son | — | Illinois |
| 46 | Leonard Mertz | 12 | son | — | Illinois |
| 47 | Betty Mertz | 9 | daughter | — | Illinois |
| 48 | Melvin Mertz | 7 | son | — | Illinois |
| 49 | Ursula Mertz | 5 | daughter | — | Illinois |
| 50 | Jacob Morrow | 48 | Head | Laborer | Illinois |
| 51 | Minnie Morrow | 53 | wife | — | Illinois |
| 52 | Ruby Morrow | 20 | daughter | Seamstress | Illinois |
| 53 | Roy Morrow | 18 | son | Laborer | Illinois |
| 54 | Jacob Morrow | 17 | son | Farm Laborer | Illinois |
| 55 | Helen Morrow | 15 | daughter | — | Illinois |
| 56 | Glen Morrow | 13 | son | — | Illinois |
| 57 | Mary Morrow THIS PERSON | 11 | daughter | — | Illinois |
| 58 | Leona Lovett | 22 | daughter | — | Illinois |
| 59 | Charles Lovett | 1 | grand son | — | Illinois |
| 60 | Louis Crawford | 50 | Head | Highway Commissioner | Illinois |
| 61 | Avie Crawford | 47 | wife | — | Illinois |
| 62 | Helen Crawford | 22 | daughter | — | Illinois |
| 63 | Harry Hampy | 11 | orphan | — | Illinois |
| 64 | Vivian Poulson | 27 | Head | Farmer | Illinois |
| 65 | Dora Poulson | 29 | wife | — | Illinois |
| 66 | Beulah Poulson | 9 | daughter | — | Illinois |
| 67 | Lois Poulson | 7 | daughter | — | Illinois |
| 68 | Ronald Poulson | 4 | son | — | Illinois |
| 69 | William Jarvis | 36 | Head | Farmer Laborer | Illinois |
| 70 | Louise Jarvis | 25 | wife | — | Iowa |
| 71 | David Jarvis | 2 | son | — | Illinois |
| 72 | Jean Jarvis | 12 | daughter | — | Illinois |
| 73 | Charlie Swaim | 57 | Head | Farmer | North Carolina |
| 74 | Mary Swaim | 55 | wife | — | North Carolina |
| 75 | Forest Day | 34 | hired hand | Farm Laborer | Illinois |
| 76 | Josiah Fairchild | 64 | Head | Farmer | Illinois |
| 77 | Robert W. Fairchild | 21 | nephew and hired hand | Farmer | Illinois |
| 78 | Helen Fairchild | 20 | wife nephew | — | Illinois |
| 79 | Wesley Fairchild | 1 | son nephew | — | Illinois |
| 80 | Kenneth Fairchild | 12 | nephew | — | 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)