MN
Mary Norris — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Montgomery, Maryland
Our Model Tree links this Mary Norris across the 1920 and 1930 US Censuses in Montgomery, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1913), then head of a 9-person household.
Age 17
b. ~1913
Female
Daughter
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Montgomery, Maryland |
| Surname | Norris |
| Given Name | Mary W. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Irish Free State |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Rockville |
| Est. Birth Year | ~1913 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Louise Norris | Daughter | — | 16 | ~1914 |
| Hannah Norris | Other | — | 38 | ~1892 |
| Maurice Norris | Son | — | 8 | ~1922 |
| Nellie Norris | Daughter | — | 14 | ~1916 |
| Mary Norris | Daughter | — | 17 | ~1913 |
| Leahy Norris | Son | — | 13 | ~1917 |
| John Norris | Head | — | 40 | ~1890 |
| Douglas Norris | Son | — | 4 | ~1926 |
| John Norris | Son | — | 11 | ~1919 |
Census Appearances
1920
Montgomery, Maryland
Daughter, age 7
Montgomery, Maryland · implied b. ~1913 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Norris |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Montgomery, Maryland
Daughter, age 17
Montgomery, Maryland · implied b. ~1913 — 9 household members
| Surname | Norris |
| Given Name | Mary W. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Irish Free State |
| Occupation | none |
| Can Read/Write | 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 Norris across 2 US Census years (1920 and 1930) in Montgomery, Maryland, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Norris
Daughter · 1930 · age 17 · b. ~1913 · Maryland
★ You are viewing this record
Sibling
Nellie Norris
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Douglas Norris
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leahy Norris
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louise Norris
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Norris
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Maurice Norris
Sibling · 1930 · age 8
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
1930 US Federal Census — Montgomery, Maryland
Open full size
1930 US Federal Census — Montgomery, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus876unit:0807)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clifton Jones | 23 | Head | Chauffeur | Maryland |
| 2 | Maggie Jones | 17 | Wife-H | Cook | Maryland |
| 3 | Charlie E. Gatis | 43 | Head | Laborer | Maryland |
| 4 | Addie B. Gatis | 50 | Wife-H | None | Dist. of Columbia |
| 5 | Eunice V. Gatis | 11 | Daughter | None | Maryland |
| 6 | George Weaver | 36 | Head | Mechanist | Maryland |
| 7 | Bessie M. Weaver | 36 | Wife-H | None | Maryland |
| 8 | Earl G. Weaver | 16 | Son | None | Maryland |
| 9 | Clinton R. Weaver | 10 | Son | None | Maryland |
| 10 | Paul M. Slater | 76 | Head | Carpenter | Virginia |
| 11 | Myrtie L. Slater | 41 | Wife-H | None | Maryland |
| 12 | Doris Slater | 14 | Daughter | None | Maryland |
| 13 | Mary Anna Slater | 12 | Daughter | None | Maryland |
| 14 | M. Thomas Slater | 11 | Son | None | Maryland |
| 15 | Robert G. Slater | 8 | Son | None | Maryland |
| 16 | Iva S. Slater | 54 | Sister | None | Virginia |
| 17 | Howard H. Grooms | 74 | Head | None | Maryland |
| 18 | Achsah Grooms | 77 | Sister-H | None | Maryland |
| 19 | Emily T. Caphell | 35 | Niece | Typist | Maryland |
| 20 | Charles W. Sage | 81 | Boarder | None | Massachusetts |
| 21 | George A. Norris | 41 | Head | Electrician | Maryland |
| 22 | Margaret G. Norris | 41 | Wife-H | None | Irish Free State |
| 23 | John W. Norris | 18 | Son | None | Maryland |
| 24 | Hanna M. Norris | 16 | Daughter | None | Maryland |
| 25 | Ruth E. Norris | 14 | Daughter | None | Maryland |
| 26 | Katherine V. Norris | 13 | Daughter | None | Maryland |
| 27 | George L. Norris | 11 | Son | None | Maryland |
| 28 | John G. Neal | 24 | Nephew | Bookkeeper | Irish Free State |
| 29 | John A. Norris | 40 | Head | Carpenter | Maryland |
| 30 | Hannah J. Norris | 38 | Wife-H | None | Irish Free State |
| 31 | Mary W. Norris THIS PERSON | 17 | Daughter | None | Maryland |
| 32 | Louise A. Norris | 16 | Daughter | None | Dist. of Columbia |
| 33 | Nellie M. Norris | 14 | Daughter | None | Maryland |
| 34 | Leahy Norris | 13 | Son | None | Maryland |
| 35 | John P. Norris | 11 | Son | None | Maryland |
| 36 | Maurice M. Norris | 8 | Son | None | Maryland |
| 37 | Douglas J. Norris | 4 | Son | None | Maryland |
| 38 | Jacob C. Schneider | 44 | Head | Carpenter | Virginia |
| 39 | Lillian L. Schneider | 34 | Wife-H | None | Maryland |
| 40 | Hazel K. Schneider | 13 | Daughter | None | Maryland |
| 41 | Conrad J. Schneider | 12 | Son | None | Maryland |
| 42 | Gladys B. Schneider | 9 | Daughter | None | Maryland |
| 43 | Jeannette L. Schneider | 7 | Daughter | None | Maryland |
| 44 | Laverne J. Schneider | 5 | Daughter | None | Maryland |
| 45 | Betty Jane Schneider | 3 | Daughter | None | Maryland |
| 46 | Dennis G. Curran | 46 | Head | Electrician | Dist. of Columbia |
| 47 | Mary A. Curran | 46 | Wife-H | None | Irish Free State |
| 48 | Henry G. Porter | 58 | Head | Clerk | Dist. of Columbia |
| 49 | Alice A. Robertson | 68 | Head | None | Maryland |
| 50 | Claudia S. Robertson | 40 | Daughter | None | Maryland |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)