MF
Mary Flaherty — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ramsey-County, Minnesota
Our Model Tree links this Mary Flaherty across the 1920, 1930 and 1940 US Censuses in Ramsey-County, Minnesota (XGBoost, ~Confirmed), with identified parents Andrew & Winnie — first a daughter (b.~1917), then head of a 5-person household.
Age 23
b. ~1917
Female
Daughter
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ramsey-County, Minnesota |
| Surname | Flaherty |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | CITY-OF-ST. PAUL |
| 1935 Residence (County) | RAMSEY |
| Additional Details | |
| Occupation | Nurse-Aid |
| Industry | Hospital |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Nurse-Aid |
| Township / Ward | Cityofst Paul |
| Est. Birth Year | ~1917 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Michael Flaherty | Head | — | 50 | ~1890 |
| Thomas Flaherty | Son | — | 24 | ~1916 |
| Michael Flaherty | Son | — | 19 | ~1921 |
| Joseph Flaherty | Son | — | 22 | ~1918 |
| Mary Flaherty | Daughter | — | 23 | ~1917 |
Census Appearances
1920
Ramsey, Minnesota
Daughter, age 2
Ramsey, Minnesota · implied b. ~1918 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flaherty |
| Given Name | Marion |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Ramsey, Minnesota
Daughter, age 13
Ramsey, Minnesota · implied b. ~1917 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flaherty |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Ramsey-County, Minnesota
Daughter, age 23
Ramsey-County, Minnesota · implied b. ~1917 — 5 household members
| Surname | Flaherty |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | CITY-OF-ST. PAUL |
| 1935 Residence (County) | RAMSEY |
| Occupation | Nurse-Aid |
| Industry | Hospital |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Flaherty across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Andrew Flaherty (~0.92 confidence) and mother Winnie Flaherty (~0.92 confidence) and father Michael Flaherty (~0.92 confidence) and father Michael Flaherty (~0.92 confidence) and mother Delia Flaherty (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Andrew Flaherty
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Winnie Flaherty
b. ~1885
Source mother
● Household
· direct · ~0.92
Father
Michael Flaherty
b. ~1890
Source father
● Household
· direct · ~0.92
Father
Michael Flaherty
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Delia Flaherty
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Flaherty
Daughter · 1940 · age 23 · b. ~1917 · Minnesota
★ You are viewing this record
Sibling
Joseph Flaherty
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Flaherty
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Flaherty
Sibling · 1940 · age 24
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 — Ramsey-County, Minnesota
Open full size
1940 US Federal Census — Ramsey-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02000-00158)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward Anderson | 55 | Head | — | Minnesota |
| 2 | Ruth Anderson | 14 | Daughter | — | Minnesota |
| 3 | Harold Anderson | 7 | Son | — | Minnesota |
| 4 | David Clewett | 42 | Lodger | Truck-Driver | Minnesota |
| 5 | Leonard W. Long | 20 | Head | Packer | Minnesota |
| 6 | Juanita Long | 20 | Wife | — | Oklahoma |
| 7 | John-Leonard Long | 1 | Son | — | Minnesota |
| 8 | Sofia W. Hagmanstero | 72 | Head | — | Norway |
| 9 | Althea Hagmanstero | 48 | Daughter | Sales | Minnesota |
| 10 | David E. Barron | 37 | Head | Inspector | Minnesota |
| 11 | Bertha Barron | 35 | Wife | — | Minnesota |
| 12 | Carol Barron | 9 | Daughter | — | Ohio |
| 13 | Charles Holmquist | 63 | Uncle | Clerk-Delivery | Minnesota |
| 14 | Mikeal Halbauer | 39 | Head | Pork-Trimmer | South Dakota |
| 15 | Mary Halbauer | 37 | Wife | — | Minnesota |
| 16 | David Halbauer | 5 | Son | — | Minnesota |
| 17 | Lorraine Halbauer | 2 | Daughter | — | Minnesota |
| 18 | Albert W. Pickett | 38 | Head | Crane Operator | Minnesota |
| 19 | Begin Block 58 End. Of Block 58 | None | — | — | — |
| 20 | William Farr | 55 | Head | Laborer | Minnesota |
| 21 | Gertrude Farr | 47 | Wife | — | Iowa |
| 22 | John Farr | 19 | Son | Carpenter Helper | Minnesota |
| 23 | Lothar-H. Kight | 54 | Head | Boiler-Maker | Illinois |
| 24 | Cora-May Kight | 52 | Wife | — | Pennsylvania |
| 25 | Jane Kight | 18 | Daughter | — | Minnesota |
| 26 | Lois Kight | 17 | Daughter | — | Minnesota |
| 27 | Phyllis Kight | 16 | Daughter | — | Minnesota |
| 28 | Frank Bickford | 43 | Head | Truck-Driver | Minnesota |
| 29 | Eva W. Bickford | 42 | Wife | — | Minnesota |
| 30 | Betty-Ann Bickford | 11 | Daughter | — | Minnesota |
| 31 | Marie-E. Bickford | 10 | Daughter | — | Minnesota |
| 32 | Lois-Jean Bickford | 7 | Daughter | — | Minnesota |
| 33 | Mary W. Kenney | 50 | Head | — | Eire |
| 34 | Michael Kenney | 48 | Son | Laborer | Wisconsin |
| 35 | Matt Kenney | 45 | Son | Shipfitter | Wisconsin |
| 36 | Michael Flaherty | 50 | Head | Foreman | Eire |
| 37 | Thomas Flaherty | 24 | Son | Baker | Minnesota |
| 38 | Mary Flaherty THIS PERSON | 23 | Daughter | Nurse-Aid | Minnesota |
| 39 | Joseph Flaherty | 22 | Son | Trimmer | Minnesota |
| 40 | Michael Jr. Flaherty | 19 | Son | Laborer | Minnesota |
Pedigree Summary
Mary + 3 siblings
Gen 1 · 5 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)