MK
Margaret Kennedy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this Margaret Kennedy across the 1910, 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1868), then head of a 3-person household.
Age 72
b. ~1868
Female
Spouse
Born: England
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | Kennedy |
| Given Name | Margaret Ann |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 72 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Naturalization Status | Naturalized |
| Additional Details | |
| Industry | Housewife |
| Class of Worker | Homekeeping |
| Highest Grade | 6 |
| 1935 Residence | Same House |
| Birth Country | England |
| Birthplace (normalized) | england |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1868 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Matthew Kennedy | Head | — | 74 | ~1866 |
| Richard Kennedy | Son | — | 52 | ~1888 |
| Margaret Kennedy | Spouse | — | 72 | ~1868 |
Census Appearances
1910
Polk, Iowa
Spouse, age 42
Polk, Iowa · implied b. ~1868 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kennedy |
| Given Name | Margaret A |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | England |
| Years Married | 24 |
| Children Born | 9 |
| Children Living | 9 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Birth Country | England |
| Birthplace (normalized) | england |
1920
Polk, Iowa
Spouse, age 51
Polk, Iowa · implied b. ~1869 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kennedy |
| Given Name | Margaret A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | England |
| Year of Immigration | 1885 |
| Naturalization Status | Naturalized |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Year of Naturalization | 1892 |
| Birthplace (normalized) | england |
1930
Polk, Iowa
Other, age 62
Polk, Iowa · implied b. ~1868 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kennedy |
| Given Name | Margaret |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1889 |
| Age at First Marriage | 21 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Polk-County, Iowa
Spouse, age 72
Polk-County, Iowa · implied b. ~1868 — 3 household members
| Surname | Kennedy |
| Given Name | Margaret Ann |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 72 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Naturalization Status | Naturalized |
| Industry | Housewife |
| Class of Worker | Homekeeping |
| Highest Grade | 6 |
| 1935 Residence | Same House |
| Birth Country | England |
| Birthplace (normalized) | england |
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 Kennedy across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Margaret Kennedy
Spouse · 1940 · age 72 · b. ~1868 · Iowa
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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 — Polk-County, Iowa
Open full size
1940 US Federal Census — Polk-County, Iowa
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-01197-00072)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank Wright | 56 | Head | Letter Carrier | Iowa |
| 2 | Sarah E. Wright | 52 | Wife | — | Iowa |
| 3 | Alice Mae Wright | 27 | Daughter | Retail Clerk | Iowa |
| 4 | Henry H. Howk | 41 | Head | Watchman | Missouri |
| 5 | Ruby E. Howk | 33 | Wife | — | Illinois |
| 6 | Wanda L. Howk | 5 | Daughter | — | Iowa |
| 7 | Carole A. Howk | 2 | Daughter | — | Iowa |
| 8 | Frank E. Lindason | 73 | Head | — | Iowa |
| 9 | Maggie S. Lindason | 67 | Wife | — | Iowa |
| 10 | Charles P. Mccabe | 30 | Head | Labor | Iowa |
| 11 | Ardia V. Mccabe | 30 | Wife | — | Kansas |
| 12 | Myrtle Charlene Mccabe | 5 | Daughter | — | Iowa |
| 13 | Rose Marie Mccabe | 4 | Daughter | — | Iowa |
| 14 | Charles P. Jr. Mccabe | 2 | Son | — | Iowa |
| 15 | James M. Mccabe | 0 | Son | — | Iowa |
| 16 | Luther Allen | 63 | Head | Maintenance Man | Kentucky |
| 17 | Hattie Allen | 47 | Wife | — | Kansas |
| 18 | Frank C. Allen | 22 | Son | Laborer | Iowa |
| 19 | Robert A. Swacker | 24 | Head | Laborer | Iowa |
| 20 | Ariel F. Swacker | 19 | Wife | — | Missouri |
| 21 | Robert A. Jr. Swacker | 1 | Son | — | Iowa |
| 22 | Herman D. Swacker | 0 | Son | — | Iowa |
| 23 | Matthew Kennedy | 74 | Head | Retired | England |
| 24 | Margaret Ann Kennedy THIS PERSON | 72 | Wife | — | England |
| 25 | Richard Kennedy | 52 | Son | Laborer | Iowa |
| 26 | James Cox | 59 | Head | Shot Firer | England |
| 27 | Lillian A. Cox | 56 | Wife | — | Indiana |
| 28 | Clyde C. Whaley | 41 | Head | Decorator | Iowa |
| 29 | Alice L. Whaley | 36 | Wife | — | Iowa |
| 30 | James A. Thomas | 43 | Head | Labor | Iowa |
| 31 | Mae L. Thomas | 40 | Wife | — | Iowa |
| 32 | Alice L. Thomas | 17 | Daughter | — | Iowa |
| 33 | Raymond D. Thomas | 15 | Son | — | Iowa |
| 34 | Betty Lou Thomas | 13 | Daughter | — | Iowa |
| 35 | Frederick M. Ferrall | 50 | Head | Night Cleaner | Iowa |
| 36 | E. Gladys Ferrall | 44 | Wife | — | Missouri |
| 37 | Virginia Lee Ferrall | 17 | Daughter | — | Iowa |
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)