MC
Mary Clancy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Knox-County, Tennessee
Our Model Tree links this Mary Clancy across the 1930 and 1940 US Censuses in Knox-County, Tennessee (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 12-person household.
Age 16
b. ~1924
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Knox-County, Tennessee |
| Surname | Clancy |
| Given Name | Mary J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Knoxville City |
| 1935 Residence (County) | Knox |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Knoxville City |
| Est. Birth Year | ~1924 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Walter Clancy | Son | — | 6 | ~1934 |
| Mary Clancy | Daughter | — | 16 | ~1924 |
| Ellen Clancy | Daughter | — | 15 | ~1925 |
| John Clancy | Son | — | 9 | ~1931 |
| John Clancy | Head | — | 69 | ~1871 |
| Ellen Clancy | Spouse | — | 37 | ~1903 |
| Joseph Clancy | Son | — | 11 | ~1929 |
| Rose Clancy | Daughter | — | 14 | ~1926 |
| Frances Clancy | Daughter | — | 4 | ~1936 |
| Thomas Clancy | Son | — | 7 | ~1933 |
| Annunciata Clancy | Daughter | — | 2 | ~1938 |
| Kate Clancy | Daughter | — | 17 | ~1923 |
Census Appearances
1930
Knox, Tennessee
Daughter, age 7
Knox, Tennessee · implied b. ~1923 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clancy |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Knox-County, Tennessee
Daughter, age 16
Knox-County, Tennessee · implied b. ~1924 — 12 household members
| Surname | Clancy |
| Given Name | Mary J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Knoxville City |
| 1935 Residence (County) | Knox |
| Income (1939) | 0 |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| 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 Clancy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Clancy
Daughter · 1940 · age 16 · b. ~1924 · Tennessee
★ You are viewing this record
Sibling
Kate Clancy
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Annunciata Clancy
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Clancy
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Clancy
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Clancy
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Clancy
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Clancy
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Clancy
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ellen Clancy
Sibling · 1940 · age 15
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
1940 US Federal Census — Knox-County, Tennessee
Open full size
1940 US Federal Census — Knox-County, Tennessee
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03956-00375)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Annie E Cruth | 62 | Wife | — | Tennessee |
| 2 | Mary Louise Cruth | 16 | Daughter | — | Tennessee |
| 3 | Earl Cruth | 13 | Son | — | Tennessee |
| 4 | H Berry | 57 | Head | Shoe Repair Shop | Poland |
| 5 | Celia Berry | 49 | Wife | — | Russia |
| 6 | Lester Berry | 30 | Son | Traveling Salesman | Alabama |
| 7 | Pearl Berry | 28 | Daughter | Stenographer | Tennessee |
| 8 | Sol Berry | 25 | Son | Traveling Salesman | Tennessee |
| 9 | Bertie Berry | 19 | Daughter | Stenographer | Tennessee |
| 10 | John A Clancy | 69 | Head | Compositor | Tennessee |
| 11 | Ellen A Clancy | 37 | Wife | — | Tennessee |
| 12 | Kate T Clancy | 17 | Daughter | Bookkeeper | Pennsylvania |
| 13 | Mary J Clancy THIS PERSON | 16 | Daughter | — | Maryland |
| 14 | Ellen A Clancy | 15 | Daughter | — | Maryland |
| 15 | Rose Joy Clancy | 14 | Daughter | — | Maryland |
| 16 | Joseph L Clancy | 11 | Son | — | Tennessee |
| 17 | John A Jr Clancy | 9 | Son | — | Tennessee |
| 18 | Thomas S Clancy | 7 | Son | — | Tennessee |
| 19 | Walter A Clancy | 6 | Son | — | Tennessee |
| 20 | Frances L Clancy | 4 | Daughter | — | Tennessee |
| 21 | Annunciata Clancy | 2 | Daughter | — | Tennessee |
| 22 | J D Yates | 70 | Head | — | Tennessee |
| 23 | Maggie Yates | 64 | Wife | — | Tennessee |
| 24 | Murel Marie | 33 | Head | Waiter | Tennessee |
| 25 | Georgia Marie | 32 | Wife | — | Tennessee |
| 26 | Doy W Jones | 25 | Head | Lineman | Tennessee |
| 27 | Attella Jones | 20 | Wife | — | Tennessee |
| 28 | C D Cates | 26 | Head | Salesman | Tennessee |
| 29 | Dorothy Cates | 23 | Wife | — | Tennessee |
| 30 | Jean Cates | 5 | Daughter | — | Tennessee |
| 31 | P E Bennett | 64 | Head | — | Kentucky |
| 32 | Edith Bennett | 59 | Wife | Saleslady | England |
| 33 | Helen A Bennett | 29 | Daughter | Saleslady | Kentucky |
| 34 | Mary E Bennett | 25 | Daughter | — | Kentucky |
| 35 | Peter H Olerich | 44 | Head | Form Analysis | Texas |
| 36 | Richard E Olerich | 19 | Son | — | Kentucky |
| 37 | Geraldine D Olerich | 17 | Daughter | — | Kentucky |
| 38 | Nola Sexton | 39 | Head | Machine Operator | Tennessee |
| 39 | James Sexton | 17 | Son | Delivery Boy | Tennessee |
| 40 | Ola Foster | 30 | Partner | Machine Operator | Tennessee |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)