CM
Clarence Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Worcester-County, Maryland
Our Model Tree links this Clarence Martin across the 1920, 1930 and 1940 US Censuses in Worcester-County, Maryland (XGBoost, ~Confirmed), with identified parents Alvin & H — first a head (b.~1907), then head of a 5-person household.
Age 33
b. ~1907
Male
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Worcester-County, Maryland |
| Surname | Martin |
| Given Name | Clarence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 3 |
| 1935 Residence (County) | Worcester |
| Additional Details | |
| Occupation | laborer |
| Industry | Basket factory |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 500 |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Laborer |
| Township / Ward | Election District 3 |
| Est. Birth Year | ~1907 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Clarence | Age | Birth yr |
|---|---|---|---|---|
| George Martin | Son | — | 17 | ~1923 |
| Theodore Martin | Son | — | 22 | ~1918 |
| John Martin | Son | — | 19 | ~1921 |
| Virgie Martin | Spouse | — | 35 | ~1905 |
| Clarence Martin | Head | — | 33 | ~1907 |
Census Appearances
1920
Worcester, Maryland
Son, age 13
Worcester, Maryland · implied b. ~1907 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Clifford |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Delaware |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Worcester, Maryland
Son, age 23
Worcester, Maryland · implied b. ~1907 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Clifford E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 21 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Delaware |
| Occupation | Laborer |
| Industry | Home Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Worcester-County, Maryland
Head, age 33
Worcester-County, Maryland · implied b. ~1907 — 5 household members
| Surname | Martin |
| Given Name | Clarence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 3 |
| 1935 Residence (County) | Worcester |
| Occupation | laborer |
| Industry | Basket factory |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 500 |
| Highest Grade | No 6 |
| 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 Clarence Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alvin Martin (~0.92 confidence) and father H Martin (~0.92 confidence) and mother Lydia Martin (~0.92 confidence) and mother Ida Martin (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alvin Martin
b. ~1875
Source father
● Household
· direct · ~0.92
Father
H Martin
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Lydia Martin
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Ida Martin
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Clarence Martin
Head · 1940 · age 33 · b. ~1907 · Maryland
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Worcester-County, Maryland
Open full size
1940 US Federal Census — Worcester-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01564-00271)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Daniel S. Morris | 25 | Son | — | Maryland |
| 42 | Betty A. Morris | 0 | Daughter | — | Maryland |
| 43 | Hattie H. Quillen | 52 | Mother | — | Maryland |
| 44 | Maggie M. Quillen | 44 | Sister | — | Maryland |
| 45 | James A. Quillen | 40 | Brother | Laborer | Maryland |
| 46 | Elwood Quillen | 17 | Son | Laborer | Maryland |
| 47 | Minnie A. Briddell | 55 | Head | Servant | Maryland |
| 48 | Myrtle A. Briddell | 30 | Daughter | Servant | Maryland |
| 49 | Eulice A. Briddell | 25 | Daughter | Servant | Maryland |
| 50 | Martha Hudson | 78 | Head | — | Maryland |
| 51 | David S. Hudson | 28 | Son | Laborer | Pennsylvania |
| 52 | Joshua Hassett | 70 | Head | Laborer | Maryland |
| 53 | Maggie M. Hassett | 69 | Wife | — | Maryland |
| 54 | George E. Briddell | 65 | Head | — | Maryland |
| 55 | Ellen K. Briddell | 51 | Wife | — | Maryland |
| 56 | Leon Briddell | 37 | Son | Laborer | Maryland |
| 57 | Ella K. Briddell | 27 | Daughter | Plant Separator | Maryland |
| 58 | Dorothy L. Briddell | 16 | Granddaughter | — | Maryland |
| 59 | Bernice Briddell | 10 | Granddaughter | — | Maryland |
| 60 | Ernest L. Henry | 38 | Lodger | Laborer | Maryland |
| 61 | William J. Henry | 28 | Lodger | Laborer | Maryland |
| 62 | Clarence Martin THIS PERSON | 33 | Head | Laborer | Maryland |
| 63 | Virgie V. Martin | 35 | Wife | Servant | Maryland |
| 64 | Theodore C. Martin | 22 | Son | Laborer | Maryland |
| 65 | John S. Martin | 19 | Son | Planter | Maryland |
| 66 | George Martin | 17 | Son | Planter | Maryland |
| 67 | Wilmer S. Purnell | 36 | Head | Laborer | Maryland |
| 68 | Alberta J. Purnell | 32 | Wife | Laborer | Maryland |
| 69 | Varion J. Purnell | 16 | Son | Laborer | Maryland |
| 70 | Sedonia E. Purnell | 14 | Daughter | — | Maryland |
| 71 | Henry Purnell | 76 | Father | — | Maryland |
| 72 | Robert Dennis | 64 | Head | Manager & Owner | Maryland |
| 73 | Mary M. Dennis | 55 | Wife | Laundress | Maryland |
| 74 | Randall Briddell | 65 | Head | Laborer | Maryland |
| 75 | Emma A. Briddell | 80 | Wife | — | Maryland |
| 76 | Bertha Briddell | 43 | Daughter | Servant | Maryland |
| 77 | Evelyn Briddell | 25 | Daughter | Plant Separator | Maryland |
| 78 | Virginia Briddell | 22 | Daughter | — | Maryland |
| 79 | Clara E. Briddell | 20 | Daughter | Cleaner (Plant) | Maryland |
| 80 | Rufus W. Briddell | 18 | Son | — | Maryland |
Pedigree Summary
Clarence
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 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)