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Mary Lee — 1920 US Census Record
Model Tree available1920 United States Federal Census · Rock Island, Illinois
Our Model Tree links this Mary Lee across the 1900, 1910 and 1920 US Censuses in Rock Island, Illinois (XGBoost, ~Confirmed), with identified parents Patrick & Albert — first a daughter (b.~1870), then head of a 5-person household.
Age 50
b. ~1870
Female
Daughter
Born: Illinois
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Rock Island, Illinois |
| Surname | Lee |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Canada |
| Additional Details | |
| Occupation | Saleswoman |
| Industry | Mail Order |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Saleswoman |
| Township / Ward | Rock Island City |
| Est. Birth Year | ~1870 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Lee | Daughter | — | 50 | ~1870 |
| Lucia Lee | Daughter | — | 48 | ~1872 |
| Anna Lee | Daughter | — | 35 | ~1885 |
| Albert Lee | Head | — | 32 | ~1888 |
| Katherine Lee | Spouse | — | 72 | ~1848 |
Census Appearances
1900
Rock Island, …
Daughter, age 29
Rock Island, Illinois · implied b. ~1871 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lee |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| Birth Month | Nov |
| Birth Year | 1871 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Stenographer |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1910
Rock Island, …
Daughter, age 40
Rock Island, Illinois · implied b. ~1870 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lee |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | England |
| Mother's Birthplace | Canada |
| Occupation | Saleslady |
| Industry | Paint Store |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Rock Island, …
Daughter, age 50
Rock Island, Illinois · implied b. ~1870 — 5 household members
| Surname | Lee |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Canada |
| Occupation | Saleswoman |
| Industry | Mail Order |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Lee across 3 US Census years (1900, 1910 and 1920) in Rock Island, Illinois, using XGBoost record linkage. Identified parents: father Patrick Lee (~0.92 confidence) and father Albert Lee (~0.50 confidence) and mother Catherine Lee (~0.92 confidence) and mother Katherine Lee (~0.92 confidence) and mother Eliza Lee (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.84
Father
Patrick Lee
b. ~1848
Source father
● Household
· direct · ~0.92
Father
Albert Lee
b. ~1888
Source father
● Household
· direct · ~0.5
Mother
Catherine Lee
b. ~1846
Source mother
● Household
· direct · ~0.92
Mother
Katherine Lee
b. ~1848
Source mother
● Household
· direct · ~0.92
Mother
Eliza Lee
b. ~1851
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Lee
Daughter · 1920 · age 50 · b. ~1870 · Illinois
★ You are viewing this record
Sibling
Anna Lee
Sibling · 1920 · age 35
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucia Lee
Sibling · 1920 · age 48
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 — Rock Island, Illinois
Open full size
1920 US Federal Census — Rock Island, Illinois
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu402unit:1102)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Hundt | 53 | Head | Foreman | Illinois |
| 2 | Barbara Hundt | 52 | Wife | — | Ohio |
| 3 | Edna Hundt | 27 | Daughter | Dressmaker | Iowa |
| 4 | John Hundt | 15 | Son | Mail Clerk | Illinois |
| 5 | Thomas F. Byrnes | 55 | Head | Clerk | Illinois |
| 6 | Mary E. Byrnes | 52 | Wife | — | Scotland |
| 7 | Charles E. Lundquist | 36 | Head | Machinist | Illinois |
| 8 | Mary E. Lundquist | 29 | Wife | — | Illinois |
| 9 | Virginia Lundquist | 2 | Daughter | — | Illinois |
| 10 | Albert E. Lee | 32 | Head | — | Ireland |
| 11 | Katherine E. Lee | 72 | Wife | — | Canada |
| 12 | Mary Lee THIS PERSON | 50 | Daughter | Saleswoman | Illinois |
| 13 | Lucia Lee | 48 | Daughter | Teacher | Illinois |
| 14 | Anna Lee | 35 | Daughter | Asst. Cashier | Illinois |
| 15 | John A. Swanson | 46 | Head | Carpenter | Sweden |
| 16 | Emma Swanson | 45 | Wife | — | Sweden |
| 17 | Harold Swanson | 15 | Son | — | Illinois |
| 18 | Milton P. Gebhart | 57 | Head | Instructor | Iowa |
| 19 | Rosamond Gebhart | 53 | Wife | — | Illinois |
| 20 | Milton J. Gebhart | 22 | Son | — | Illinois |
| 21 | Mabel Widem | 28 | Roomer | Dressmaker | Illinois |
| 22 | Gorchard Watkins | 35 | Roomer | Cabinet Maker | Sweden |
| 23 | Herman Krause | 33 | Head | Salesman | Illinois |
| 24 | Edith Krause | 33 | Wife | — | Illinois |
| 25 | Lawrence M. Mcdonald | 45 | Head | — | Illinois |
| 26 | Florence Mcdonald | 42 | Wife | — | Illinois |
| 27 | Ralph Mcdonald | 33 | Head | Mail Carrier | Illinois |
| 28 | Jennie I. Mcdonald | 38 | Wife | — | Illinois |
| 29 | Edgar A. Mcdonald | 12 | Son | — | Illinois |
| 30 | Rollin M. Barbour | 43 | Head | Painter | Wisconsin |
| 31 | Teresa Barbour | 36 | Wife | — | Illinois |
| 32 | Marguerite Barbour | 11 | Daughter | — | Illinois |
| 33 | Madeline Barbour | 9 | Daughter | — | Illinois |
| 34 | Clara Jane Barbour | 3 | Daughter | — | Illinois |
| 35 | Arthur J. Whalen | 32 | Head | Sales Manager | Illinois |
| 36 | Vera A. Whalen | 31 | Wife | — | Illinois |
| 37 | Bernice Whalen | 6 | Daughter | — | Illinois |
| 38 | William Fearn | 58 | Head | — | England |
| 39 | Elizabeth Fearn | 55 | Wife | — | Illinois |
| 40 | Florence Fearn | 28 | Daughter | Mail Clerk | Illinois |
| 41 | Hans Pearson | 39 | Head | Official | Illinois |
| 42 | Mabel M. Pearson | 34 | Wife | — | Illinois |
| 43 | Samuel R. Pearson | 16 | Son | — | Illinois |
| 44 | Herbert E. Pearson | 11 | Son | — | Illinois |
| 45 | James T. Reed | 47 | Head | Business Agent | Illinois |
| 46 | Ida O. Reed | 43 | Wife | Teacher | Illinois |
| 47 | Ruth A. Reed | 20 | Daughter | Teacher | Illinois |
| 48 | Emma Steinhauer | 61 | Head | — | Illinois |
| 49 | Charles M. Wright | 58 | Head | Commercial Traveler | Illinois |
| 50 | Emma F. Wright | 52 | Wife | — | Illinois |
Pedigree Summary
Mary + 2 siblings
Gen 1 · 5 parents
~0.84
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)