MC
Mary Connelly — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Mary Connelly across the 1910 and 1920 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1898), then head of a 9-person household.
Age 22
b. ~1898
Female
Daughter
Born: Maryland
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Baltimore, Maryland |
| Surname | Connelly |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1898 |
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.
9 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| John Connelly | Son | — | 20 | ~1900 |
| Mary Connelly | Daughter | — | 22 | ~1898 |
| Helen Connelly | Daughter | — | 11 | ~1909 |
| Joseph Connelly | Son | — | 24 | ~1896 |
| Nicholas Connelly | Son | — | 14 | ~1906 |
| Alice Connelly | Daughter | — | 22 | ~1898 |
| Martin Connelly | Head | — | 57 | ~1863 |
| Margaret Connelly | Spouse | — | 47 | ~1873 |
| Lawrence Connelly | Son | — | 16 | ~1904 |
Census Appearances
1910
Baltimore, Maryland
Daughter, age 12
Baltimore, Maryland · implied b. ~1898 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connelly |
| Given Name | Mildred B. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1920
Baltimore, Maryland
Daughter, age 22
Baltimore, Maryland · implied b. ~1898 — 9 household members
| Surname | Connelly |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Connelly across 2 US Census years (1910 and 1920) in Baltimore, Maryland, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Connelly
Daughter · 1920 · age 22 · b. ~1898 · Maryland
★ You are viewing this record
Sibling
John Connelly
Sibling · 1920 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Connelly
Sibling · 1920 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Connelly
Sibling · 1920 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nicholas Connelly
Sibling · 1920 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Connelly
Sibling · 1920 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Connelly
Sibling · 1920 · age 11
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 — Baltimore, Maryland
Open full size
1920 US Federal Census — Baltimore, Maryland
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu656unit:1121)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Hilda Jezierski | 6 | daughter | None | Maryland |
| 52 | Frank Jezierski | 53 | head | Foreman | Poland |
| 53 | Pauline Jezierski | 46 | wife | None | Poland |
| 54 | Joseph Jezierski | 23 | son | Machinist | Maryland |
| 55 | Clara Jezierski | 12 | daughter | None | Maryland |
| 56 | Martha Jezierski | 14 | daughter | None | Maryland |
| 57 | Theresa Jezierski | 6 | daughter | None | Maryland |
| 58 | Frank Jezierski | 21 | son | None | Maryland |
| 59 | William Jezierski | 15 | son | None | Maryland |
| 60 | Elizabeth Weber | 70 | head | None | Maryland |
| 61 | Alma Herzinger | 31 | daughter | None | Maryland |
| 62 | Konrad Herzinger | 40 | son-in-law | Wood Finisher | Germany |
| 63 | Frank Portugal | 70 | head | Housekeeper | Germany |
| 64 | Alice Murphy | 45 | housekeeper | Saleswoman | Maryland |
| 65 | Walter Andrzejewski | 36 | head | Brass Finisher | Poland |
| 66 | Helen Andrzejewski | 28 | wife | None | Poland |
| 67 | Joseph Andrzejewski | 12 | son | None | Maryland |
| 68 | Chester Andrzejewski | 6 | son | None | Maryland |
| 69 | Frances Andrzejewski | 9 | daughter | None | Maryland |
| 70 | Mildred Andrzejewski | 3 | daughter | None | Maryland |
| 71 | Martha Andrzejewski | 1 | daughter | None | Maryland |
| 72 | Mary Andrzejewski | 5 | daughter | None | Maryland |
| 73 | Antonia Morawska | 37 | head | Laborer | Poland |
| 74 | Alexandra Morawska | 31 | wife | None | Poland |
| 75 | Frank Morawska | 14 | son | None | Maryland |
| 76 | Genevieve Morawska | 11 | daughter | None | Maryland |
| 77 | Eleonora Morawska | 9 | daughter | None | Maryland |
| 78 | Bertha Morawska | 7 | daughter | None | Maryland |
| 79 | Mary Morawska | 5 | daughter | None | Maryland |
| 80 | Helen Morawska | 3 | daughter | None | Maryland |
| 81 | Stanley Morawska | 39 | head | Laborer | Poland |
| 82 | Wladyslaw Muziensky | 38 | wife | None | Poland |
| 83 | Harry Muziensky | 6 | son | None | Maryland |
| 84 | Mildred Muziensky | 2 | daughter | None | Maryland |
| 85 | Martin Connelly | 57 | head | Oysterman | Ireland |
| 86 | Margaret Connelly | 47 | wife | None | Maryland |
| 87 | Joseph N. Connelly | 24 | son | Core Maker | Maryland |
| 88 | John Connelly | 20 | son | Core Maker | Maryland |
| 89 | Lawrence M. Connelly | 16 | son | Greaser | Maryland |
| 90 | Nicholas Connelly | 14 | son | Helper | Maryland |
| 91 | Mary Connelly THIS PERSON | 22 | daughter | None | Maryland |
| 92 | Helen Connelly | 11 | daughter | Housekeeper | Maryland |
| 93 | Alice Connelly | 22 | daughter | Operator | Maryland |
| 94 | Jeremiah Statler | 39 | head | Blacksmith | Maryland |
| 95 | Louisa Statler | 37 | wife | None | Maryland |
| 96 | Edgar Statler | 18 | son | Shipping Clerk | Maryland |
| 97 | William J. Statler | 16 | son | Barber | Maryland |
| 98 | Anthony Statler | 11 | son | None | Maryland |
| 99 | Mary J. Statler | 10 | daughter | None | Maryland |
| 100 | Amanda Statler | 8 | daughter | None | Maryland |
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)