MA
Mary Alexander — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jackson-County, Missouri
Our Model Tree links this Mary Alexander across the 1920, 1930 and 1940 US Censuses in Jackson-County, Missouri (XGBoost, ~Confirmed) — first a spouse (b.~1877), then head of a 4-person household.
Age 63
b. ~1877
Female
Spouse
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Jackson-County, Missouri |
| Surname | Alexander |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Kansas City |
| 1935 Residence (County) | Jackson |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Township / Ward | Kansas City |
| Est. Birth Year | ~1877 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mildred Alexander | Daughter | — | 32 | ~1908 |
| Mary Alexander | Daughter | — | 30 | ~1910 |
| James Alexander | Head | — | 71 | ~1869 |
| Mary Alexander | Spouse | — | 63 | ~1877 |
Census Appearances
Spouse, age 41
Jackson, Missouri · implied b. ~1879 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Year of Naturalization | 1905 |
| Birthplace (normalized) | scotland |
1930
Jackson, Missouri
Spouse, age 52
Jackson, Missouri · implied b. ~1878 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1902 |
| Age at First Marriage | 30 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Jackson-County, Missouri
Spouse, age 63
Jackson-County, Missouri · implied b. ~1877 — 4 household members
| Surname | Alexander |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Kansas City |
| 1935 Residence (County) | Jackson |
| Naturalization Status | Naturalized |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Alexander across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Alexander
Spouse · 1940 · age 63 · b. ~1877 · Missouri
★ 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 — Jackson-County, Missouri
Open full size
1940 US Federal Census — Jackson-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02171-00547)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Kenneth C. Smith | 1 | Grandson | — | Missouri |
| 2 | John H. Walker | 73 | Head | House Painter | England |
| 3 | Anne E. Walker | 74 | Wife | — | England |
| 4 | Raymond S. Walker | 48 | Son | House Painter | Kansas |
| 5 | Donald D. Bucklin | 32 | Head | Sales Representative | Wisconsin |
| 6 | Dora L. Bucklin | 31 | Wife | — | Arkansas |
| 7 | Jack D. Bucklin | 11 | Son | — | Missouri |
| 8 | Donna J. Bucklin | 8 | Daughter | — | Oklahoma |
| 9 | Joan K. Bucklin | 5 | Daughter | — | Illinois |
| 10 | James C. Alexander | 71 | Head | Watchman | Scotland |
| 11 | Mary E. Alexander THIS PERSON | 63 | Wife | — | Scotland |
| 12 | Mary F. Alexander | 30 | Daughter | Stenographer | Missouri |
| 13 | Mildred C. Alexander | 32 | Daughter | Stenographer | Missouri |
| 14 | Catherine Whitney | 62 | Head | Dressmaker | Missouri |
| 15 | Louisa Ridgell | 93 | Mother | — | Kentucky |
| 16 | Catherine L. Roach | 27 | Neice | Receptionist | Missouri |
| 17 | Helen Glass | 27 | Lodger | Stenographer | Missouri |
| 18 | Ann F. Shapiro | 55 | Head | — | Russia |
| 19 | Herman Shapiro | 25 | Son | Grocery Clerk | Missouri |
| 20 | Claude P. Martin | 49 | Head | Printer | Kansas |
| 21 | Mildred Martin | 49 | Wife | — | Missouri |
| 22 | Albert C. Sager | 44 | Lodger | Teacher | Missouri |
| 23 | Lillian Russell | 44 | Lodger | — | Missouri |
| 24 | Andrew Clarkson | 52 | Head | Gardener | Scotland |
| 25 | Jennie L. Clarkson | 48 | Wife | Maid | Scotland |
| 26 | Eleanor D. Clarkson | 19 | Daughter | — | Missouri |
| 27 | William P. Clarkson | 13 | Son | — | Missouri |
| 28 | Melvin L. Bure | 34 | Head | Bookkeeper | Kansas |
| 29 | Vera A. Bure | 33 | Wife | — | California |
| 30 | Elma I. Holm | 20 | Sister-in-law | Saleswoman | Missouri |
| 31 | Charlotte B. Hymer | 49 | Head | — | Kentucky |
| 32 | Herbert A. Hymer | 28 | Son | Hotel Clerk | Kentucky |
| 33 | Susan Rugg | 40 | Lodger | Seamstress | Kansas |
| 34 | Shirley Rugg | 17 | Daughter | Dancer | Missouri |
| 35 | Adrian T. Le Grand | 33 | Head | Traveling Salesman | Iowa |
| 36 | Fern A. Le Grand | 29 | Wife | — | Missouri |
| 37 | Adrian J. Le Grand | 7 | Son | — | Missouri |
| 38 | Benny La Doucieur | 32 | Head | Barber | North Dakota |
| 39 | Ruth La Doucieur | 24 | Wife | Hairdresser | Kentucky |
| 40 | Hugo C. La Doucieur | 23 | Son | — | Missouri |
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)