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Mary Laughlin — 1930 US Census Record
Linked across censuses1930 United States Federal Census · St Louis, Missouri
Our Model Tree links this Mary Laughlin across the 1920 and 1930 US Censuses in St Louis, Missouri (XGBoost, ~Confirmed) — first a daughter (b.~1915), then head of a 7-person household.
Age 15
b. ~1915
Female
Daughter
Born: Missouri
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | St Louis, Missouri |
| Surname | Laughlin |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Carondelet Township Part |
| Est. Birth Year | ~1915 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Jacob Laughlin | Son | — | 17 | ~1913 |
| Jacob Laughlin | Head | — | 42 | ~1888 |
| Mary Laughlin | Daughter | — | 15 | ~1915 |
| Lydia Laughlin | Spouse | — | 42 | ~1888 |
| John Laughlin | Son | — | 11 | ~1919 |
| Fred Laughlin | Son | — | 13 | ~1917 |
| Lydia Laughlin | Daughter | — | 9 | ~1921 |
Census Appearances
1920
St Louis, …
Daughter, age 6
St Louis, Missouri · implied b. ~1914 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Laughlin |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
St Louis, …
Daughter, age 15
St Louis, Missouri · implied b. ~1915 — 7 household members
| Surname | Laughlin |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Laughlin across 2 US Census years (1920 and 1930) in St Louis, Missouri, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Laughlin
Daughter · 1930 · age 15 · b. ~1915 · Missouri
★ You are viewing this record
Sibling
Fred Laughlin
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jacob Laughlin
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lydia Laughlin
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Laughlin
Sibling · 1930 · 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
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:missouricensus00reel1180:1060)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John Laughlin | 27 | Head | Farmer | Illinois |
| 52 | Lola Laughlin | 18 | Wife | — | Kentucky |
| 53 | John Jr Laughlin | 1 | Son | — | Illinois |
| 54 | Mary Laughlin | 1 | Daughter | — | Illinois |
| 55 | James Laughlin | 0 | Son | — | Illinois |
| 56 | William Laughlin | 0 | Son | — | Illinois |
| 57 | John Schmidgall | 54 | Head | Farmer | Missouri |
| 58 | Mary Schmidgall | 54 | Wife | — | Missouri |
| 59 | John Jr Schmidgall | 18 | Son | — | Missouri |
| 60 | Fred Schmidgall | 12 | Son | — | Missouri |
| 61 | Jacob Schmidgall | 72 | Head | — | Switzerland |
| 62 | Mary Schmidgall | 57 | Wife | — | Missouri |
| 63 | Jacob Jr Schmidgall | 32 | Head | Farmer | Missouri |
| 64 | Lydia Schmidgall | 27 | Wife | — | Missouri |
| 65 | Jacob Iii Schmidgall | 6 | Son | — | Missouri |
| 66 | Mary Schmidgall | 4 | Daughter | — | Missouri |
| 67 | John Schmidgall | 2 | Son | — | Missouri |
| 68 | Lydia Schmidgall | 0 | Daughter | — | Missouri |
| 69 | Fred Schmidgall | 68 | Head | Farmer | Germany |
| 70 | Mary Schmidgall | 63 | Wife | — | Germany |
| 71 | Fred Jr Schmidgall | 22 | Son | Laborer | Missouri |
| 72 | Lydia Schmidgall | 20 | Daughter | — | Missouri |
| 73 | William Laughlin | 61 | Head | Farmer | Missouri |
| 74 | Mary Laughlin | 56 | Wife | — | Missouri |
| 75 | William Jr Laughlin | 26 | Son | — | Missouri |
| 76 | John Laughlin | 24 | Son | — | Missouri |
| 77 | Fred Laughlin | 22 | Son | — | Missouri |
| 78 | Lydia Laughlin | 20 | Daughter | — | Missouri |
| 79 | Mary Laughlin | 18 | Daughter | — | Missouri |
| 80 | Jacob Laughlin | 16 | Son | — | Missouri |
| 81 | Fred Laughlin | 30 | Head | Farmer | Missouri |
| 82 | Mary Laughlin | 28 | Wife | — | Missouri |
| 83 | Fred Jr Laughlin | 5 | Son | — | Missouri |
| 84 | Jacob Laughlin | 42 | Head | Farmer | Missouri |
| 85 | Lydia Laughlin | 42 | Wife | — | Missouri |
| 86 | Jacob Jr Laughlin | 17 | Son | Laborer | Missouri |
| 87 | Mary Laughlin THIS PERSON | 15 | Daughter | — | Missouri |
| 88 | Fred Laughlin | 13 | Son | — | Missouri |
| 89 | John Laughlin | 11 | Son | — | Missouri |
| 90 | Lydia Laughlin | 9 | Daughter | — | Missouri |
| 91 | William Laughlin | 70 | Head | Farmer | Missouri |
| 92 | Mary Laughlin | 66 | Wife | — | Missouri |
| 93 | John Laughlin | 44 | Head | Farmer | Missouri |
| 94 | Lola Laughlin | 37 | Wife | — | Missouri |
| 95 | John Jr Laughlin | 19 | Son | Laborer | Missouri |
| 96 | Lola Laughlin | 17 | Daughter | — | Missouri |
| 97 | Fred Laughlin | 64 | Head | Farmer | Germany |
| 98 | Mary Laughlin | 62 | Wife | — | Germany |
| 99 | Fred Jr Laughlin | 32 | Son | Laborer | Missouri |
| 100 | Lydia Laughlin | 30 | Daughter | — | 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)