MH
Mary Harvey — 1940 US Census Record
Model Tree available1940 United States Federal Census · Woodbury-County, Iowa
Our Model Tree links this Mary Harvey across the 1920, 1930 and 1940 US Censuses in Woodbury-County, Iowa (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1914), then head of a 3-person household.
Age 26
b. ~1914
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Woodbury-County, Iowa |
| Surname | Harvey |
| Given Name | Mary Lucille |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Sioux City |
| 1935 Residence (County) | Woodbury |
| Additional Details | |
| Occupation | Beautician |
| Industry | Beauty Shop |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 500 |
| Highest Grade | H 10 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Beautician |
| Township / Ward | Sioux City |
| Est. Birth Year | ~1914 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Harvey | Daughter | — | 26 | ~1914 |
| John Harvey | Head | — | 68 | ~1872 |
| Mary Harvey | Spouse | — | 63 | ~1877 |
Census Appearances
1920
Woodbury, Iowa
Daughter, age 6
Woodbury, Iowa · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harvey |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Woodbury, Iowa
Daughter, age 16
Woodbury, Iowa · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harvey |
| Given Name | Mary L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Woodbury-County, Iowa
Daughter, age 26
Woodbury-County, Iowa · implied b. ~1914 — 3 household members
| Surname | Harvey |
| Given Name | Mary Lucille |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Sioux City |
| 1935 Residence (County) | Woodbury |
| Occupation | Beautician |
| Industry | Beauty Shop |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 500 |
| Highest Grade | H 10 |
| 1935 Residence | Same Place |
| 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 Mary Harvey across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Harvey (~0.92 confidence) and father John Harvey (~0.92 confidence) and mother Mary Harvey (~0.92 confidence) and mother Mary Harvey (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Harvey
b. ~1872
Source father
● Household
· direct · ~0.92
Father
John Harvey
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Mary Harvey
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Mary Harvey
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Harvey
Daughter · 1940 · age 26 · b. ~1914 · Iowa
★ 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 — Woodbury-County, Iowa
Open full size
1940 US Federal Census — Woodbury-County, Iowa
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-01216-00386)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clarence Mytelkaard | 45 | Head | Laborer | So. Dak. |
| 2 | Mary Ann Mytelkaard | 11 | Wife | — | So. Dak. |
| 3 | Leona F. Mytelkaard | 8 | Daughter | — | So. Dak. |
| 4 | Daisy Mae Mytelkaard | 5 | Daughter | — | So. Dak. |
| 5 | Casper George Holzer | 28 | Head | New Worker | Wisconsin |
| 6 | Earlene Holzer | 24 | Wife | — | Eng Canada |
| 7 | Maryann Ann Holzer | 7 | Daughter | — | Iowa |
| 8 | Marilyn Jean Holzer | 5 | Daughter | — | Iowa |
| 9 | Richard George Holzer | 4 | Son | — | Iowa |
| 10 | Sharon Lou Holzer | 2 | Daughter | — | Iowa |
| 11 | Elizabeth Barretton | 62 | Head | Housework | Netherlands |
| 12 | Hazel M. Lyberger | 36 | Head | Housework | Iowa |
| 13 | Callen Lee Connelly | 15 | Daughter | — | Iowa |
| 14 | Harry J. Baker | 74 | Father | — | Ohio |
| 15 | Bertha Buckik | 26 | Maid | Housework | Iowa |
| 16 | Crystal L. Buckik | 5 | Daughter | — | Iowa |
| 17 | Dwight Helyker | 24 | Lodger | Truck Driver | Nebraska |
| 18 | Donald Roll | 30 | Lodger | Laborer | Iowa |
| 21 | Harold H. Berge | 30 | Lodger | Truck Driver | Iowa |
| 22 | Lodena Berge | 23 | Lodger | — | Iowa |
| 23 | Robert Mitchell | 33 | Lodger | Truck Driver | Nebraska |
| 24 | Glenna Mitchell | 23 | Lodger | — | Ohio |
| 25 | Thomas Vaugh | 29 | Head | Loader | So. Dak. |
| 26 | Nellie Vaugh | 26 | Wife | Waitress | Iowa |
| 27 | Stephens Draft | 31 | Head | Owner | So. Dak. |
| 28 | Genevieve Draft | 30 | Wife | — | So. Dak. |
| 29 | Stephen C. Draft | 2 | Son | — | So. Dak. |
| 30 | Jean Deppert | 10 | Sister-in-law | — | So. Dak. |
| 31 | John D. Harvey | 68 | Head | Meter-Man | Iowa |
| 32 | Mary J. Harvey | 63 | Wife | — | Iowa |
| 33 | Mary Lucille Harvey THIS PERSON | 26 | Daughter | Beautician | Iowa |
| 34 | Frederick Johannsen | 42 | Head | Surveyor | Iowa |
| 35 | Daisy E. Johannsen | 40 | Wife | — | Iowa |
| 36 | Marcella Johannsen | 18 | Daughter | — | Iowa |
| 37 | Emmett Phillips | 29 | Head | Truck Driver | Minnesota |
| 38 | Lorna E. Phillips | 29 | Wife | — | Iowa |
| 39 | Darlene L. Phillips | 9 | Daughter | — | Minnesota |
Pedigree Summary
Mary
Gen 1 · 4 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)