MC
Mary Clark — 1920 US Census Record
Model Tree available1920 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Mary Clark across the 1900, 1910 and 1920 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed), with identified parents Lucy — first a daughter (b.~1881), then head of a 3-person household.
Age 39
b. ~1881
Female
Daughter
Born: Maine
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Middlesex, Massachusetts |
| Surname | Clark |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | Maine |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Additional Details | |
| Occupation | Binder |
| Industry | Book |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
| Occupation | Binder |
| Township / Ward | Lowell City |
| Est. Birth Year | ~1881 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Clark | Daughter | — | 39 | ~1881 |
| Lucy Clark | Head | — | 67 | ~1853 |
| Ida Howard | Other | — | 54 | ~1866 |
Census Appearances
1900
Middlesex, Massachusetts
Daughter, age 20
Middlesex, Massachusetts · implied b. ~1880 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Mary A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Maine |
| Birth Month | Dec |
| Birth Year | 1880 |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Occupation | Book Binder |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1910
Middlesex, Massachusetts
Daughter, age 29
Middlesex, Massachusetts · implied b. ~1881 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Mary A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Maine |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Occupation | Binder |
| Industry | Bill Supplies |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1920
Middlesex, Massachusetts
Daughter, age 39
Middlesex, Massachusetts · implied b. ~1881 — 3 household members
| Surname | Clark |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | Maine |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Occupation | Binder |
| Industry | Book |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
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 Clark across 3 US Census years (1900, 1910 and 1920) in Middlesex, Massachusetts, using XGBoost record linkage. Identified parents: mother Lucy Clark (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Lucy Clark
b. ~1853
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Clark
Daughter · 1920 · age 39 · b. ~1881 · Massachusetts
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Middlesex, Massachusetts
Open full size
1920 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu711unit:0374)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John Buckley | 47 | Head | Carpenter | Massachusetts |
| 52 | Elizabeth Buckley | 39 | Wife | — | Massachusetts |
| 53 | Estella Buckley | 13 | Daughter | — | Massachusetts |
| 54 | Robert Buckley | 8 | Son | — | Massachusetts |
| 55 | Warren Buckley | 4 | Son | — | Massachusetts |
| 56 | James Norris | 7 | Boarder | — | Massachusetts |
| 57 | Joseph Norris | 2 | Boarder | — | Massachusetts |
| 58 | Julia O'Leary | 47 | Head | — | Ireland |
| 59 | Julia O'Leary | 24 | Daughter | Winder | Maine |
| 60 | Cornelius O'Leary | 23 | Son | Trucker | Maine |
| 61 | Jeremiah O'Leary | 13 | Son | — | Massachusetts |
| 62 | Christopher Sullivan | 49 | Brother | Laborer | Ireland |
| 63 | Marion Miller | 38 | Wife | — | England |
| 64 | George F. Miller | 41 | Head | Fireman | Massachusetts |
| 65 | Lewis S. Bayhal | 25 | Lodger | Auto Maker | Syria |
| 66 | Margaret Halpin | 43 | Lodger | Specialist | Massachusetts |
| 67 | Valerie Jacques | 50 | Boarder | Wine Clerk | Canada |
| 68 | George M. Andres | 48 | Lodger | Barber | Vermont |
| 69 | Otho Myrick | 71 | Head | Janitor | Maine |
| 70 | Ada Myrick | 58 | Wife | — | Canada |
| 71 | Adam Myrick | 36 | Son | Electrician | Massachusetts |
| 72 | Malcolm Patrick | 40 | Roomer | Electrician | Massachusetts |
| 73 | Ralph N. Fiorello | 24 | Head | Boarder | Massachusetts |
| 74 | Helen Fiorello | 23 | Wife | — | Massachusetts |
| 75 | Thomas Fiorello | 1 | Son | — | Massachusetts |
| 76 | Grace Demange | 15 | Sister-in-law | Button Maker | Massachusetts |
| 77 | Josephine Bronconier | 53 | Lodger | — | Canada |
| 78 | Lucy E. Clark | 67 | Head | — | Maine |
| 79 | Mary A. Clark THIS PERSON | 39 | Daughter | Binder | Maine |
| 80 | Ida Howard | 54 | Sister | Weaver | Maine |
| 81 | John E. Connors | 24 | Head | Grinder | Massachusetts |
| 82 | Ella Connors | 33 | Wife | — | Massachusetts |
| 83 | Helen Connors | 6 | Daughter | — | Massachusetts |
| 84 | Olive E. Underhill | 69 | Head | — | Wisconsin |
| 85 | George A. Cheney | 67 | Head | Butcher | Massachusetts |
| 86 | Anna F. Cheney | 62 | Wife | — | New Hampshire |
| 87 | Alice Brady | 63 | Head | — | Massachusetts |
| 88 | Victor Clement | 70 | Head | Carver | Canada |
| 89 | Mary L. Clement | 65 | Wife | — | Canada |
| 90 | Emma Clement | 40 | Daughter | Stitcher | Canada |
| 91 | Leon Clement | 26 | Daughter | Stitcher | Massachusetts |
| 92 | Alice Brouillet | 28 | Daughter | — | Massachusetts |
| 93 | Frank Brouillet | 28 | Son-in-law | Fireman | Massachusetts |
| 94 | Elizabeth Turner | 26 | Boarder | Stitcher | Massachusetts |
| 95 | Rose Champagne | 69 | Head | Proprietor | New York |
| 96 | Mary Walthersold | 47 | Servant | Servant | New York |
| 97 | Eugene Champagne | 15 | Grandson | — | Massachusetts |
| 98 | Vitaline Lyrandine | 49 | Servant | Servant | Canada |
| 99 | Daniel W. Gillon | 29 | Lodger | Machinist | New Hampshire |
| 100 | William Davy | 67 | Boarder | Laborer | Canada |
Related Census Records
Pedigree Summary
Mary
Gen 1 · 1 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)