MH
Mary Hardy — 1920 US Census Record
Model Tree available1920 United States Federal Census · Hennepin, Minnesota
Our Model Tree links this Mary Hardy across the 1900, 1910 and 1920 US Censuses in Hennepin, Minnesota (XGBoost, ~Confirmed), with identified parents Hugh & N — first a daughter (b.~1876), then head of a 4-person household.
Age 44
b. ~1876
Female
Daughter
Born: Iowa
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Hennepin, Minnesota |
| Surname | Hardy |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | Nurse |
| Industry | Hospital |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Nurse |
| Township / Ward | Minneapolis City |
| Est. Birth Year | ~1876 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Hardy | Daughter | — | 44 | ~1876 |
| N Hardy | Head | — | 70 | ~1850 |
| Vincent Hardy | Son | — | 30 | ~1890 |
| Emma Hardy | Spouse | — | 61 | ~1859 |
Census Appearances
1900
Hennepin, Minnesota
Daughter, age 25
Hennepin, Minnesota · implied b. ~1875 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hardy |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Iowa |
| Birth Month | Jan |
| Birth Year | 1875 |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1910
Hennepin, Minnesota
Daughter, age 35
Hennepin, Minnesota · implied b. ~1875 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hardy |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Illinois |
| Occupation | Operator |
| Industry | Press |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Hennepin, Minnesota
Daughter, age 44
Hennepin, Minnesota · implied b. ~1876 — 4 household members
| Surname | Hardy |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Illinois |
| Occupation | Nurse |
| Industry | Hospital |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| 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 Mary Hardy across 3 US Census years (1900, 1910 and 1920) in Hennepin, Minnesota, using XGBoost record linkage. Identified parents: father Hugh Hardy (~0.92 confidence) and father N Hardy (~0.92 confidence) and mother Annie Hardy (~0.92 confidence) and mother Emma Hardy (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Hugh Hardy
b. ~1850
Source father
● Household
· direct · ~0.92
Father
N Hardy
b. ~1850
Source father
● Household
· direct · ~0.92
Mother
Annie Hardy
b. ~1854
Source mother
● Household
· direct · ~0.92
Mother
Emma Hardy
b. ~1859
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Hardy
Daughter · 1920 · age 44 · b. ~1876 · Minnesota
★ You are viewing this record
Sibling
Vincent Hardy
Sibling · 1920 · age 30
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
1920 US Federal Census — Hennepin, Minnesota
Open full size
1920 US Federal Census — Hennepin, Minnesota
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu835unit:0084)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Iva Nelson | 19 | Daughter | — | Iowa |
| 2 | Allen Johnson | 28 | Head | Checker | Illinois |
| 3 | Marie Johnson | 27 | Wife | — | Iowa |
| 4 | Ole Jacobson | 56 | Head | Laborer | Norway |
| 5 | Helma Jacobson | 44 | Wife | — | Sweden |
| 6 | Edith Jacobson | 16 | Daughter | — | Wisconsin |
| 7 | Agnes Jacobson | 24 | Daughter | Stenographer | Wisconsin |
| 8 | Edna Jacobson | 19 | Daughter | Inspector | Wisconsin |
| 9 | Norman Jacobson | 13 | Son | — | Wisconsin |
| 10 | Harold Jacobson | 10 | Son | — | Wisconsin |
| 11 | Mrs. Mary Peterson | 47 | Head | Laundress | Sweden |
| 12 | John Peterson | 8 | Son | — | Minnesota |
| 13 | N. G. Hardy | 70 | Head | — | Michigan |
| 14 | Emma Hardy | 61 | Wife | — | Illinois |
| 15 | Mary Hardy THIS PERSON | 44 | Daughter | Nurse | Iowa |
| 16 | Vincent Hardy | 30 | Son | Mail Clerk | Iowa |
| 17 | Jane Mitchell | 63 | Head | — | New Jersey |
| 18 | Alice Batty | 36 | Daughter | Seamstress | Iowa |
| 19 | Alton Batty | 15 | Grandson | Office Clerk | Minnesota |
| 20 | Albert Lounway | 41 | Head | Mechanic | Canada |
| 21 | Ernestine Lounway | 31 | Wife | — | Minnesota |
| 22 | Geraldine Lounway | 10 | Daughter | — | Minnesota |
| 23 | Lucy Lounway | 8 | Daughter | — | Minnesota |
| 24 | Alberta Lounway | 6 | Daughter | — | Minnesota |
| 25 | Alfred Lounway | 3 | Son | — | Minnesota |
| 26 | Hazel Lounway | 0 | Daughter | — | Minnesota |
| 27 | Mrs. Mary Jones | 71 | Mother-in-law | — | Maine |
| 28 | Dennis D. Daly | 55 | Head | Insurance | Minnesota |
| 29 | Alice Daly | 52 | Wife | — | Ohio |
| 30 | Peter Nord | 50 | Head | Laborer | Sweden |
| 31 | Hannah Nord | 48 | Wife | — | Sweden |
| 32 | Selman Nord | 20 | Son | Bill Clerk | Minnesota |
| 33 | Everett Nord | 17 | Son | — | Minnesota |
| 34 | Alice Nord | 14 | Daughter | — | Minnesota |
| 35 | Mylburn Nord | 12 | Son | — | Minnesota |
| 36 | Alma Nord | 10 | Daughter | — | Minnesota |
| 37 | Arthur Nord | 6 | Son | — | Minnesota |
| 38 | Mrs. Margaret Riley | 76 | Head | — | Maine |
| 39 | Lester Riley | 33 | Son | Asst Manager | Iowa |
| 40 | Joseph T. Riley | 27 | Son | Salesman | Minnesota |
| 41 | Joseph F. Tripton | 42 | Head | — | Minnesota |
| 42 | Anna Tripton | 36 | Wife | — | Minnesota |
| 43 | Charles Tripton | 9 | Son | — | Minnesota |
| 44 | Mary Tripton | 7 | Daughter | — | Minnesota |
| 45 | Catherine Tripton | 1 | Daughter | — | Minnesota |
| 46 | Michael Murphy | 62 | Head | — | Ohio |
| 47 | Julia Murphy | 60 | Wife | — | Ohio |
| 48 | Daniel T. Murphy | 27 | Son | Fireman | Ohio |
| 49 | Nellie Laughlin | 54 | Head | — | Canada |
| 50 | Joseph Laughlin | 32 | Son | Engineer | Minnesota |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)