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Mary Lopez — 1930 US Census Record
Linked across censuses1930 United States Federal Census · St Louis, Missouri
Our Model Tree links this Mary Lopez across the 1930 and 1940 US Censuses in St Louis, Missouri (XGBoost, ~Confirmed) — first a spouse (b.~1892), then head of a 8-person household.
Age 38
b. ~1892
Female
Spouse
Born: Poland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | St Louis, Missouri |
| Surname | Lopez |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Poland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1914 |
| Age at First Marriage | 20 |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | Polish |
| Home Owned/Rented | R |
| Home Value / Rent | 75 |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
| Township / Ward | Overland |
| Est. Birth Year | ~1892 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| George Lopez | Son | — | 9 | ~1921 |
| Dorothy Lopez | Daughter | — | 6 | ~1924 |
| Robert Lopez | Son | — | 2 | ~1928 |
| Virginia Lopez | Daughter | — | 13 | ~1917 |
| Mary Lopez | Spouse | — | 38 | ~1892 |
| Mildred Lopez | Daughter | — | 8 | ~1922 |
| Louis Lopez | Son | — | 16 | ~1914 |
| Alma Lopez | Daughter | — | 11 | ~1919 |
Census Appearances
1930
St Louis, …
Spouse, age 38
St Louis, Missouri · implied b. ~1892 — 8 household members
| Surname | Lopez |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Poland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1914 |
| Age at First Marriage | 20 |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Can Read/Write | Yes |
| Mother Tongue | Polish |
| Home Owned/Rented | R |
| Home Value / Rent | 75 |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
1940
St.-Louis-County, Missouri
Other, age 50
St.-Louis-County, Missouri · implied b. ~1890 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lopes |
| Given Name | Mary |
| Relationship to Head | Mother |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Widowed |
| Birthplace | Poland |
| 1935 Residence (City) | Normandy Township |
| 1935 Residence (County) | St. Louis |
| Naturalization Status | Naturalized |
| Class of Worker | 0 |
| Highest Grade | No 0 |
| 1935 Residence | Same place |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
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 Lopez across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Lopez
Spouse · 1930 · age 38 · b. ~1892 · Missouri
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — St Louis, Missouri
Open full size
1930 US Federal Census — St Louis, Missouri
Page Contents
50 people indexed on this census page (ia:1930:missouricensus00reel1225:1074)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mary Lopez THIS PERSON | 38 | Wife | — | Poland |
| 52 | Louis A Lopez | 16 | Son | Office Boy | Missouri |
| 53 | Virginia M Lopez | 13 | Daughter | None | Missouri |
| 54 | Alma F Lopez | 11 | Daughter | None | Missouri |
| 55 | George E Lopez | 9 | Son | None | Missouri |
| 56 | Mildred R Lopez | 8 | Daughter | None | Missouri |
| 57 | Dorothy L Lopez | 6 | Daughter | None | Missouri |
| 58 | Robert A Lopez | 2 | Son | None | Missouri |
| 59 | Herman D Musterman | 64 | Head | Carpenter | Germany |
| 60 | Mary Musterman | 64 | Wife | None | Missouri |
| 61 | John Musterman | 30 | Son | Iron Worker | Missouri |
| 62 | William Schneider | 59 | Brother-in-law | Night Watch | Illinois |
| 63 | John B Smith | 27 | Head | Canvasser | Missouri |
| 64 | Ruth D Smith | 27 | Wife | None | Missouri |
| 65 | James B Smith | 2 | Son | None | Missouri |
| 66 | Leslie D Heather | 18 | Nephew | Salesman | Missouri |
| 67 | Owen D Ramsey | 31 | Head | Salesman | Missouri |
| 68 | Myrtle M Ramsey | 30 | Wife | None | Missouri |
| 69 | Otis L Ramsey | 11 | Son | None | Missouri |
| 70 | Glenwood R Ramsey | 6 | Son | None | Missouri |
| 71 | Adele Heimburger | 62 | Head | None | Germany |
| 72 | Evelyn V Moore | 21 | Boarder | Operator | Missouri |
| 73 | Richard M Moore | 19 | Boarder | Mechanic | Missouri |
| 74 | Howard V Vickers | 26 | Head | None | Ohio |
| 75 | Helen O Vickers | 20 | Wife | None | Louisiana |
| 76 | Louise Jennings | 26 | Sister-in-law | None | Louisiana |
| 77 | Harry J Berdan | 33 | Head | Salesman | Russia |
| 78 | Jennie J Berdan | 32 | Wife | None | Russia |
| 79 | Francis L Berdan | 10 | Daughter | None | Missouri |
| 80 | Jerome Berdan | 6 | Son | None | Missouri |
| 81 | John F Stites | 58 | Head | Driver | Missouri |
| 82 | Sarah C Stites | 44 | Wife | Agent | Ohio |
| 83 | William E Wagner | 52 | Head | Clergyman | Indiana |
| 84 | Celia A Wagner | 44 | Wife | None | Missouri |
| 85 | Dorothy P Wagner | 23 | Daughter | Teacher | Missouri |
| 86 | Paul E Clemmons | 32 | Head | Apprentice | Illinois |
| 87 | Hulda E Clemmons | 28 | Wife | None | Illinois |
| 88 | Elmer R Foster | 40 | Head | Postal Clerk | Illinois |
| 89 | Grace E Foster | 28 | Wife | None | Illinois |
| 90 | Edgar Foster | 1 | Son | None | Missouri |
| 91 | Claude Denhower | 43 | Head | Janitor | Kansas |
| 92 | Minnie Denhower | 41 | Wife | None | Arkansas |
| 93 | Charles E Fahey | 41 | Head | Fireman | Missouri |
| 94 | Lella E Fahey | 40 | Wife | None | Missouri |
| 95 | Alfred E Fahey | 22 | Son | Lineman | Missouri |
| 96 | Gerald Fahey | 12 | Son | None | Missouri |
| 97 | Bernard Fahey | 9 | Son | None | Missouri |
| 98 | Gregor A Fahey | 6 | Son | None | Missouri |
| 99 | Norma J Fahey | 3 | Daughter | None | Missouri |
| 100 | Felix Metcalf | 36 | Head | Tinner | Missouri |
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)