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Mary Mclaughlin — 1930 US Census Record
Model Tree available1930 United States Federal Census · Olmsted, Minnesota
Our Model Tree links this Mary Mclaughlin across the 1920, 1930 and 1940 US Censuses in Olmsted, Minnesota (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1917), then head of a 6-person household.
Age 13
b. ~1917
Female
Daughter
Born: Minnesota
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Olmsted, Minnesota |
| Surname | McLaughlin |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | South Dakota |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Rochester City |
| Est. Birth Year | ~1917 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Jean Mclaughlin | Daughter | — | 1 | ~1929 |
| Mary Mclaughlin | Daughter | — | 13 | ~1917 |
| John Mclaughlin | Head | — | 36 | ~1894 |
| Hannah Ekberg | Other | — | 32 | ~1898 |
| Grace Mclaughlin | Other | — | 31 | ~1899 |
| Rose Mclean | Other | — | 33 | ~1897 |
Census Appearances
1920
Olmsted, Minnesota
Daughter, age 3
Olmsted, Minnesota · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McLaughlin |
| Given Name | Mary Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | South Dak |
| Occupation | none |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Olmsted, Minnesota
Daughter, age 13
Olmsted, Minnesota · implied b. ~1917 — 6 household members
| Surname | McLaughlin |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | South Dakota |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Olmsted-County, Minnesota
Daughter, age 23
Olmsted-County, Minnesota · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mc Laughlin |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Rochester city |
| 1935 Residence (County) | Olmsted |
| Occupation | Saleswoman |
| Industry | Retail Clothing |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 780 |
| Highest Grade | C 2 |
| 1935 Residence | Same Place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Mclaughlin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Mclaughlin (~0.92 confidence) and father John Mclaughlin (~0.92 confidence) and mother Grace Mclaughlin (~0.92 confidence) and mother Jessie Mc Laughlin (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Mclaughlin
b. ~1894
Source father
● Household
· direct · ~0.92
Father
John Mclaughlin
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Grace Mclaughlin
b. ~1899
Source mother
● Household
· direct · ~0.92
Mother
Jessie Mc Laughlin
b. ~1899
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Mclaughlin
Daughter · 1930 · age 13 · b. ~1917 · Minnesota
★ You are viewing this record
Sibling
Jean Mclaughlin
Sibling · 1930 · age 1
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 — Olmsted, Minnesota
Open full size
1930 US Federal Census — Olmsted, Minnesota
Page Contents
49 people indexed on this census page (ia:1930:minnesotacensus00reel1110:0433)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Richard M. Oberlander | 23 | Bro-in-law | Assistant Manager | Texas |
| 2 | Harry F. Bayard | 33 | Head | Surgeon | Minnesota |
| 3 | Florence L. Bayard | 30 | Wife-H | — | Minnesota |
| 4 | Emily B. Hall | 25 | Head | Technician | Minnesota |
| 5 | Helen G. Lundahl | 24 | Partner | Technician | Minnesota |
| 6 | Norma M. Evans | 24 | Head | Clinical Secretary | Minnesota |
| 7 | Marjorie M. Gallagher | 22 | Partner | Stenographer | North Dakota |
| 8 | Isabel A. Paulson | 21 | Partner | Stenographer | Minnesota |
| 9 | Robert A. Orr | 32 | Head | Proprietor | South Dakota |
| 10 | Eunice L. Orr | 32 | Wife-H | — | Minnesota |
| 11 | Gretchen A. Orr | 7 | Daughter | — | Minnesota |
| 12 | Janet Orr | 6 | Daughter | — | Minnesota |
| 13 | John W. Feller | 36 | Head | Civil Engineer | Iowa |
| 14 | Florence C. Feller | 34 | Wife-H | — | Minnesota |
| 15 | John L. Feller | 7 | Son | — | Minnesota |
| 16 | Robert G. Feller | 5 | Son | — | Minnesota |
| 17 | Harold D. Feller | 2 | Son | — | Minnesota |
| 18 | John T. Mclaughlin | 36 | Head | Confectioner | Minnesota |
| 19 | Grace H. Mclaughlin | 31 | Wife-H | — | South Dakota |
| 20 | Mary M. Mclaughlin THIS PERSON | 13 | Daughter | — | Minnesota |
| 21 | Jean D. Mclaughlin | 1 | Daughter | — | Minnesota |
| 22 | Hannah E. Ekberg | 32 | Lodger | Asst Superintendent | Minnesota |
| 23 | Rose Mclean | 33 | Lodger | Nurse | Nebraska |
| 24 | Thomas Mulroy | 70 | Head | — | Minnesota |
| 25 | Ellen Mulroy | 53 | Wife-H | — | New York |
| 26 | Margaret M. Mulroy | 19 | Daughter | — | Minnesota |
| 27 | Mary E. Dornack | 26 | Head-HR | Dishwasher | Minnesota |
| 28 | Constance G. Dornack | 9 | Daughter | — | Minnesota |
| 29 | Virginia S. Dornack | 2 | Daughter | — | Minnesota |
| 30 | Guy H. Smith | 30 | Roomer | Laborer | Minnesota |
| 31 | Harold F. Martin | 35 | Head | Service Man | Wisconsin |
| 32 | Mattie M. Martin | 33 | Wife-H | — | Wisconsin |
| 33 | Margaret M. Martin | 12 | Daughter | — | Wisconsin |
| 34 | John H. Martin | 10 | Son | — | Wisconsin |
| 35 | Joseph D. Martin | 2 | Son | — | Minnesota |
| 36 | Max G. Shapiro | 33 | Head | Salesman | Russia |
| 37 | Sarah R. Shapiro | 31 | Wife-H | — | Russia |
| 38 | Miriam Shapiro | 11 | Daughter | — | Minnesota |
| 39 | Leo Shapiro | 10 | Son | — | Minnesota |
| 40 | Milton Shapiro | 8 | Son | — | Minnesota |
| 41 | Charles L. Kold | 49 | Head | Cabinet | Wisconsin |
| 42 | Walter M. Wold | 38 | Brother | Salesman | Minnesota |
| 43 | Edwin D. Hancy | 28 | Head | Baker | Minnesota |
| 44 | Birdie M. Hancy | 26 | Wife-H | — | Minnesota |
| 45 | Edwin R. Jr. Hancy | 4 | Son | — | Minnesota |
| 46 | Evelyn A. Hancy | 1 | Daughter | — | Minnesota |
| 47 | Clarence R. Thompson | 32 | Head | Laborer | Wisconsin |
| 48 | Viola M. Thompson | 21 | Wife-H | — | Minnesota |
| 49 | Arla M. Thompson | 1 | Daughter | — | Minnesota |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)