MF
Mary Fitzpatrick — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jackson-County, Missouri
Our Model Tree links this Mary Fitzpatrick across the 1920, 1930 and 1940 US Censuses in Jackson-County, Missouri (XGBoost, ~Confirmed), with identified parents Lena & James — first a daughter (b.~1905), then head of a 3-person household.
Age 35
b. ~1905
Female
Daughter
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jackson-County, Missouri |
| Surname | Fitzpatrick |
| Given Name | Mary B. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Kansas City |
| 1935 Residence (County) | Jackson |
| Additional Details | |
| Occupation | Biller |
| Industry | Telephone Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Biller |
| Township / Ward | Kansas City |
| Est. Birth Year | ~1905 |
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 Fitzpatrick | Daughter | — | 35 | ~1905 |
| Thartrude Fitzpatrick | Daughter | — | 36 | ~1904 |
| Lena Fitzpatrick | Head | — | 72 | ~1868 |
Census Appearances
1920
Jackson, Missouri
Daughter, age 14
Jackson, Missouri · implied b. ~1906 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fitzpatrick |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
Jackson, Missouri
Daughter, age 24
Jackson, Missouri · implied b. ~1906 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fitzpatrick |
| Given Name | Mary B. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Missouri |
| Age at First Marriage | 24 |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | Steno |
| Industry | Retail Coal Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Jackson-County, Missouri
Daughter, age 35
Jackson-County, Missouri · implied b. ~1905 — 3 household members
| Surname | Fitzpatrick |
| Given Name | Mary B. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Kansas City |
| 1935 Residence (County) | Jackson |
| Occupation | Biller |
| Industry | Telephone Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Fitzpatrick across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Lena Fitzpatrick (~0.92 confidence) and father James Fitzpatrick (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Lena Fitzpatrick
b. ~1868
Source mother
● Household
· direct · ~0.92
Father
James Fitzpatrick
b. ~1869
Source father
● Household
· direct · ~0.92
This person
Anchor record
Mary Fitzpatrick
Daughter · 1940 · age 35 · b. ~1905 · Missouri
★ You are viewing this record
Sibling
Thartrude Fitzpatrick
Sibling · 1940 · age 36
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 — 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-t0627-02169-00390)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Leota Olsen | 53 | Head | Bookkeeper | Kansas |
| 42 | Sister Christie | 48 | Sister | Stenographer | Kansas |
| 43 | Louis Ducker | 47 | Head | Gas Master | Texas |
| 44 | Hera Ducker | 25 | Wife | — | Iowa |
| 45 | Carol Rowley | 43 | Head | Stenographer | Iowa |
| 46 | Lucile Rowley | 35 | Sister | Stenographer | Iowa |
| 47 | Catherine Rowley | 68 | Mother | — | Iowa |
| 48 | Blanche Prichard | 41 | Head | Clerical | Kansas |
| 49 | Carry Prichard | 74 | Mother | — | Wisconsin |
| 50 | Sidney J. Lester | 62 | Head | Installer | Illinois |
| 51 | Pearl Lester | 50 | Wife | — | Kansas |
| 52 | Liera Lester | 36 | Daughter | Claim Adjuster | Kansas |
| 53 | Lena (H) Fitzpatrick | 72 | Head | — | Missouri |
| 54 | Thartrude Fitzpatrick | 36 | Daughter | Stenographer | Missouri |
| 55 | Mary B. Fitzpatrick THIS PERSON | 35 | Daughter | Biller | Missouri |
| 56 | Clarence Shannon | 65 | Head | President | Kentucky |
| 57 | Josephine Shannon | 69 | Wife | — | Missouri |
| 58 | Harry Keegan | 75 | Head | — | Illinois |
| 59 | Ella O. Keegan | 68 | Wife | Manager | Kansas |
| 60 | Alice C. Smith | 44 | Head | Secretary | Kansas |
| 61 | Orson Smith | 18 | Son | — | Missouri |
| 62 | Carol Smith | 16 | Daughter | — | Missouri |
| 63 | Leslie Taylor | 60 | Head | Stenographer | Colorado |
| 64 | Gladys Taylor | 43 | Wife | Singer | Iowa |
| 65 | John Byers | 68 | Head | Owner | Missouri |
| 66 | Carrie Byers | 60 | Wife | — | Missouri |
| 67 | A. M. Marshall | 45 | Head | Retail Sales Manager | Oklahoma |
| 68 | Dora Marshall | 50 | Wife | Saleslady | Iowa |
| 69 | Nelson Haynes | 80 | Head | — | Michigan |
| 70 | Mammie Haynes | 69 | Wife | — | Minnesota |
| 71 | Harold F. Haynes | 38 | Son | Private Secretary | Missouri |
| 72 | Francis Moriarity | 61 | Brother | Manager | Missouri |
| 73 | Myrtle Evans | 52 | Head | Teacher | Illinois |
| 74 | Alfred S. Cathers | 66 | Lodger | Artist | Illinois |
| 75 | Leola L. Cathers | 64 | Lodger | — | Iowa |
| 76 | Ada Cacock | 52 | Lodger | Seamstress | England |
| 77 | Eptia Cacock | None | Line | — | — |
| 78 | Eugene L. Packard | 27 | Head | Inspector | Kansas |
| 79 | Ruth Packard | 33 | Wife | — | Kansas |
| 80 | Eugene Jr. Packard | 1 | Son | — | Missouri |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 2 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)