MH
Mary Hardy — 1910 US Census Record
Linked across censuses1910 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Hardy across the 1900, 1910 and 1920 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a head (b.~1840), then head of a 3-person household.
Age 70
b. ~1840
Female
Head
Born: Vermont
Widowed
1910 Census Record Details
| Census Year | 1910 |
| Location | Cook, Illinois |
| Surname | Hardy |
| Given Name | Mary A |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 70 |
| Marital Status | Widowed |
| Birthplace | Vermont |
| Children Born | 6 |
| Children Living | 4 |
| Father's Birthplace | Vermont |
| Mother's Birthplace | Vermont |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Vermont |
| Birth Country | United States |
| Birthplace (normalized) | vermont |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1840 |
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 1910 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Grace Hardy | Daughter | — | 44 | ~1866 |
| Mary Hardy | Head | — | 70 | ~1840 |
| Guy Hardy | Son | — | 35 | ~1875 |
Census Appearances
1900
Cook, Illinois
Spouse, age 60
Cook, Illinois · implied b. ~1840 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hardy |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Vermont |
| Birth Month | Aug |
| Birth Year | 1840 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Vermont |
| Birth Country | United States |
| Birthplace (normalized) | vermont |
1910
Cook, Illinois
Head, age 70
Cook, Illinois · implied b. ~1840 — 3 household members
| Surname | Hardy |
| Given Name | Mary A |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 70 |
| Marital Status | Widowed |
| Birthplace | Vermont |
| Children Born | 6 |
| Children Living | 4 |
| Father's Birthplace | Vermont |
| Mother's Birthplace | Vermont |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Vermont |
| Birth Country | United States |
| Birthplace (normalized) | vermont |
1920
Cook, Illinois
Other, age 81
Cook, Illinois · implied b. ~1839 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hardy |
| Given Name | Mary A |
| Relationship to Head | Mother |
| Sex | F |
| Color / Race | White |
| Age | 81 |
| Marital Status | Widowed |
| Birthplace | Vermont |
| Father's Birthplace | New York |
| Mother's Birthplace | Vermont |
| Occupation | Manager |
| Industry | Theatre |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Vermont |
| Birth Country | United States |
| Birthplace (normalized) | vermont |
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 Cook, Illinois, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Hardy
Head · 1910 · age 70 · b. ~1840 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1910 US Federal Census — Cook, Illinois
Open full size
1910 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1910:13thcensus1910po245unit:1048)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alvin W White | 35 | Boarder | Civil Engineer | Indiana |
| 2 | Jessie P White | 37 | Boarder | Bookkeeper | Colorado |
| 3 | Kate W Schellinger | 54 | Boarder | Teacher | Ohio |
| 4 | Harry H Lobdell | 43 | Head | Traveling Salesman | New York |
| 5 | Nell S Lobdell | 40 | Wife | — | Iowa |
| 6 | Warren F Lobdell | 18 | Son | — | Illinois |
| 7 | Harrison Lobdell | 13 | Son | — | Illinois |
| 8 | Ruth G Lobdell | 12 | Daughter | — | Illinois |
| 9 | Winefred Hawley | 41 | Servant | Housework | Ireland English |
| 10 | Mary Loftus | 27 | Servant | Housework | Ireland English |
| 11 | Robert C Mcmaster | 29 | Head | Clerk | Ohio |
| 12 | Catherine Mcmaster | 52 | Sister in law | — | Ohio |
| 13 | Jessie W Mcmaster | 23 | Sister | Genl Clerk | Ohio |
| 14 | Charles Trelan | 32 | Lodger | Clerk | Indiana |
| 15 | Edward A Brookes | 35 | Head | Buyer | Iowa |
| 16 | Mary E Brookes | 25 | Wife | — | Wisconsin |
| 17 | Elizabeth S Caldwell | 72 | Boarder | — | Ohio |
| 18 | Abbie L Weller | 75 | Boarder | — | England English |
| 19 | Julie G Weller | 65 | Boarder | — | New York |
| 20 | Edith M Atwater | 25 | Boarder | Commercial Photographer | Illinois |
| 21 | Bertha Smith | 20 | Boarder | Dressmaker | Indiana |
| 22 | Walter Mollineaux | 26 | Head | Waiter | New York |
| 23 | Winifred Mollineaux | 38 | Wife | — | Indiana |
| 24 | Phillis Mcintyre | 19 | Stepdaughter | Clerk | Indiana |
| 25 | Bessie Mcintyre | 15 | Stepdaughter | Errand Girl | Indiana |
| 26 | Mary A Hardy THIS PERSON | 70 | Head | — | Vermont |
| 27 | Grace Hardy | 44 | Daughter | Teacher | Illinois |
| 28 | Guy Hardy | 35 | Son | Clerk | Illinois |
| 29 | Leona M Crandall | 25 | Head | Checker | New York |
| 30 | Eugene Mcneal | 33 | Lodger | Salesman | Missouri |
| 31 | Abraham Deltebach | 36 | Head | Barber | Ger German |
| 32 | Hattie Deltebach | 34 | Wife | — | Missouri |
| 33 | Leon Deltebach | 8 | Son | — | Illinois |
| 34 | Mabelle Smith | 21 | Sister in law | Saleslady | Illinois |
| 35 | Sam Moy | 32 | Head | Proprietor | Chi Chinese |
| 36 | Sam Kong | 18 | Lodger | Laundryman | Chi Chinese |
| 37 | Gong Yuen | 28 | Lodger | Laundryman | Chi Chinese |
| 38 | Edwin De Knight | 34 | Head | Printer | Illinois |
| 39 | Lola B De Knight | 31 | Wife | — | Illinois |
| 40 | Alice B De Knight | 11 | Daughter | — | Illinois |
| 41 | Bessie B De Knight | 6 | Daughter | — | Illinois |
| 42 | Edward B De Knight | 1 | Son | — | Illinois |
| 43 | John Friedberg | 41 | Head | Window Sash | Ger German |
| 44 | Dora Friedberg | 30 | Wife | — | Ger German |
| 45 | Hannah Friedberg | 3 | Daughter | — | Illinois |
| 46 | Jessie Swift | 21 | Head | Window Trimmer | Minnesota |
| 47 | Bessie Swift | 19 | Wife | Inspector | Illinois |
| 48 | Carolina Blade | 39 | Head | Cook | Ger German |
| 49 | Gale Blade | 17 | Grandson | Elevator Boy | Illinois |
| 50 | Frank P Pierre | 51 | Head | Clerk | Texas |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1910 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)