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Mary Lund — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Lund across the 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a head (b.~1864), then head of a 8-person household.
Age 66
b. ~1864
Female
Head
Born: Ireland
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Lund |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 66 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1914 |
| Age at First Marriage | 21 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Industry | Yes |
| Can Read/Write | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | R |
| Home Value / Rent | 100.00 |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1864 |
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 |
|---|---|---|---|---|
| John Lund | Son | — | 32 | ~1898 |
| Thomas Lund | Son | — | 19 | ~1911 |
| Margaret Lund | Daughter | — | 23 | ~1907 |
| Joseph Lund | Son | — | 21 | ~1909 |
| James Lund | Son | — | 35 | ~1895 |
| Mary Lund | Head | — | 66 | ~1864 |
| William Lund | Son | — | 13 | ~1917 |
| Mary Lund | Daughter | — | 28 | ~1902 |
Census Appearances
1920
Cook, Illinois
Spouse, age 52
Cook, Illinois · implied b. ~1868 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lund |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Ireland |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Cook, Illinois
Head, age 66
Cook, Illinois · implied b. ~1864 — 8 household members
| Surname | Lund |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 66 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1914 |
| Age at First Marriage | 21 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Industry | Yes |
| Can Read/Write | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | R |
| Home Value / Rent | 100.00 |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Lund across 2 US Census years (1920 and 1930) in Cook, Illinois, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Lund
Head · 1930 · age 66 · b. ~1864 · Illinois
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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 — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel466:0369)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Einar Hoidal | 36 | Head | Real Estate | Norway |
| 52 | Elizabeth Hoidal | 37 | Wife | — | Illinois |
| 53 | Einar Jr. Hoidal | 14 | Son | — | Illinois |
| 54 | Helen Hoidal | 12 | Daughter | — | Illinois |
| 55 | Betty Hoidal | 10 | Daughter | — | Illinois |
| 56 | Mildred Hoidal | 8 | Daughter | — | Illinois |
| 57 | Oscar T. Lund | 57 | Head | — | Sweden |
| 58 | Emma Lund | 54 | Wife | — | Maryland |
| 59 | Eleanor Lund | 25 | Daughter | — | Illinois |
| 60 | Elizabeth Lund | 23 | Daughter | — | Illinois |
| 61 | Margaret Lund | 21 | Daughter | — | Illinois |
| 62 | Alice Lund | 18 | Daughter | — | Illinois |
| 63 | Ruth Lund | 16 | Daughter | — | Illinois |
| 64 | Marion Lund | 14 | Daughter | — | Illinois |
| 65 | Saima Lund | 26 | Servant | Al | Finland |
| 66 | Mary Lund THIS PERSON | 66 | Head | — | Ireland |
| 67 | James Lund | 35 | Son | Machinist | Illinois |
| 68 | John Lund | 32 | Son | Undertaker | Illinois |
| 69 | Mary Lund | 28 | Daughter | Comptometer | Illinois |
| 70 | Margaret Lund | 23 | Daughter | Machine Operator | Illinois |
| 71 | Joseph Lund | 21 | Son | — | Ireland |
| 72 | Thomas Lund | 19 | Son | — | Ireland |
| 73 | William Lund | 13 | Son | — | Illinois |
| 74 | John Lund | 41 | Head | — | Ireland |
| 75 | Mary Lund | 38 | Wife | — | Illinois |
| 76 | John Lund | 48 | Head | — | Ireland |
| 77 | Helen Lund | 38 | Sister | — | Illinois |
| 78 | James Lund | 28 | Brother | — | Ireland |
| 79 | Thomas Lund | 25 | Brother | — | Ireland |
| 80 | William Lund | 17 | Brother | — | Illinois |
| 81 | Mollie S. Lund | 56 | Head | Broker | Illinois |
| 82 | William Lund | 21 | Son | — | Illinois |
| 83 | Gregory Lund | 45 | Head-H | — | Illinois |
| 84 | Mary Lund | 42 | Wife | Bookkeeper | Illinois |
| 85 | Margaret Lund | 18 | Daughter | — | Illinois |
| 86 | Catherine Lund | 16 | Daughter | — | Ireland |
| 87 | James Lund | 40 | Head | — | Ireland |
| 88 | Anna Lund | 40 | Wife | — | Ireland |
| 89 | James Lund | 18 | Son | Polisher | Illinois |
| 90 | Josephine Lund | 16 | Daughter | Bookkeeper | Illinois |
| 91 | Frank Lund | 42 | Head | — | Ireland |
| 92 | Mary Lund | 42 | Wife | — | Ireland |
| 93 | John Lund | 19 | Son | — | Ireland |
| 94 | Edward Lund | 12 | Son | — | Illinois |
| 95 | Joseph Lund | 10 | Son | — | Illinois |
| 96 | John Lund | 50 | Head | — | Poland |
| 97 | Shirley Lund | 43 | Wife | — | Lithuania |
| 98 | Bessie Lund | 18 | Daughter | — | Illinois |
| 99 | Max Lund | 50 | Head | Pa | Lithuania |
| 100 | Mary Lund | 48 | Wife | Pa | Lithuania |
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)