MP
Margaret Parker — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Monona-County, Iowa
Our Model Tree links this Margaret Parker across the 1930 and 1940 US Censuses in Monona-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 8-person household.
Age 19
b. ~1921
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Monona-County, Iowa |
| Surname | Parker |
| Given Name | Margaret |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | R. |
| 1935 Residence (County) | Monona |
| Additional Details | |
| Occupation | School |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | School |
| Township / Ward | Whiting |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Parker | Daughter | — | 19 | ~1921 |
| Imogene Parker | Daughter | — | 21 | ~1919 |
| Elizabeth Parker | Daughter | — | 16 | ~1924 |
| Dorothy Parker | Daughter | — | 10 | ~1930 |
| Horace Parker | Head | — | 44 | ~1896 |
| Wallace Parker | Son | — | 17 | ~1923 |
| Milton Parker | Son | — | 22 | ~1918 |
| Alice Parker | Spouse | — | 47 | ~1893 |
Census Appearances
1930
Monona, Iowa
Daughter, age 9
Monona, Iowa · implied b. ~1921 — 39 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Parker |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Monona-County, Iowa
Daughter, age 19
Monona-County, Iowa · implied b. ~1921 — 8 household members
| Surname | Parker |
| Given Name | Margaret |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | R. |
| 1935 Residence (County) | Monona |
| Occupation | School |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Iowa |
| 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 Margaret Parker across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Parker
Daughter · 1940 · age 19 · b. ~1921 · Iowa
★ You are viewing this record
Sibling
Elizabeth Parker
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Imogene Parker
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Milton Parker
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Parker
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wallace Parker
Sibling · 1940 · age 17
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 — Monona-County, Iowa
Open full size
1940 US Federal Census — Monona-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01184-00218)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Helen Orr | 34 | wife | Housewife | Iowa |
| 42 | Vernon Orr | 14 | son | School | Iowa |
| 43 | A. B. Robinson | 67 | head | Farmer | Iowa |
| 44 | G. H. Mercer | 39 | son in law | Laborer | Iowa |
| 45 | Gladys Mercer | 39 | daughter | Housewife | Iowa |
| 46 | Arthur Mercer | 14 | grandson | School | Iowa |
| 47 | Bruce Mercer | 12 | grandson | — | Iowa |
| 48 | William Mcfarland | 40 | head | Farmer | Iowa |
| 49 | Edna Mcfarland | 39 | wife | Housewife | Iowa |
| 50 | Robert Mcfarland | 9 | son | School | Iowa |
| 51 | Willard Dahl | 34 | head | Farmer | Iowa |
| 52 | Bernice Dahl | 34 | wife | Housewife | So. Dak. |
| 53 | Roscoe Hansen | 25 | boarder | Teacher | Iowa |
| 54 | Chris Westergaard | 51 | head | Farmer | Denmark |
| 55 | Flora Westergaard | 47 | wife | Housewife | Germany |
| 56 | August Westergaard | 19 | son | Farmer | Iowa |
| 57 | Kathryn Westergaard | 15 | daughter | School | Iowa |
| 58 | Harley Thomas | 34 | head | Farmer | Iowa |
| 59 | Gala Thomas | 31 | wife | Housewife | Iowa |
| 60 | Gary Thomas | 5 | son | — | Iowa |
| 61 | Gurlen Merritt | 57 | head | Farmer | Iowa |
| 62 | Gerald Merritt | 27 | son | Farmer | Iowa |
| 63 | Ole Olson | 69 | head | Farmer | Denmark |
| 64 | Kate Olson | 55 | wife | Housewife | Iowa |
| 65 | Horace Parker | 44 | head | Farmer | Iowa |
| 66 | Alice Parker | 47 | wife | Housewife | Iowa |
| 67 | Milton Parker | 22 | son | Farmer | Iowa |
| 68 | Imogene Parker | 21 | daughter | School | Iowa |
| 69 | Margaret Parker THIS PERSON | 19 | daughter | School | Iowa |
| 70 | Wallace Parker | 17 | son | School | Iowa |
| 71 | Elizabeth Parker | 16 | daughter | School | Iowa |
| 72 | Dorothy Parker | 10 | daughter | — | Iowa |
| 73 | Raymond Gulick | 42 | head | Farmer | Iowa |
| 74 | Helen Gulick | 32 | wife | Housewife | Iowa |
| 75 | W. T. Gulick | 82 | father | — | Iowa |
| 76 | George Walker | 42 | head | Farmer | No. Dak. |
| 77 | Esther Walker | 39 | wife | Housewife | Norway |
| 78 | Marylouise Walker | 17 | daughter | School | Iowa |
| 79 | Ray Gregory | 42 | head | Farmer | Missouri |
| 80 | Marie Gregory | 33 | wife | Housewife | Iowa |
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)