Note: there are a number of websites dealing with Charlie Parker, the Man and the Music. One of the best, which concentrates on the former, is this one: https://www.birdlives.co.uk/home.

A close friend of Charlie's from childhood was Robert Simpson.

1920 United States Federal Census

Name: Rebecca A Ruffin
Age: 1
Birth Year: 1919
Birthplace: Tennessee
Home in 1920: Mason, Tipton, Tennessee
Residence Date: 1920
Race: Black
Gender: Female
Relation to Head of House: Daughter
Marital Status: Single
Father's Name: Marcus W Ruffin
Father's Birthplace: Tennessee
Mother's Name: Fannie P Ruffin
Mother's Birthplace: Tennessee
Household Members: Name Age
Marcus W Ruffin 35
Fannie P Ruffin 27
Winfre F Ruffin 6
Octavio O Ruffin 3
Rebecca A Ruffin 1

1930 United States Federal Census

Name: Rebecca E Ruffin
Birth Year: 1919
Gender: Female
Race: Negro
Age in 1930: 11
Birthplace: Tennessee
Marital Status: Single
Relation to Head of House: Daughter
Home in 1930: Kansas City, Jackson, Missouri, USA
Map of Home: Kansas City, Jackson, Missouri
Street Address: Brooklyn Avenue
Ward of City: 9
Block: 279
House Number: 1417
Dwelling Number: 193
Family Number: 325
Attended School: Yes
Able to Read and Write: Yes
Father's Birthplace: Tennessee
Mother's Birthplace: Tennessee
Able to Speak English: Yes
Household Members: Name Age
Marcus Ruffin 44
Fannie E Ruffin 35
Winfrey F Ruffin 15
Octavia Z Ruffin 13
Rebecca E Ruffin 11
Ophelia V Ruffin 9
Neoma B Ruffin 7
Dorothy M Ruffin 3

Web: Jackson County, Missouri, Marriage Records, 1826-2014

Name: Rebecca Ruffin
Registration Date: 25 Jul 1936
Marriage Date: 25 Jul 1936
Marriage Place: Jackson, Missouri, USA
Spouse: Charles Parker Jr
License Number: 1936A0063731
URL: http://records.jacksongov.org/Marriage/SearchEntry.aspx
Household Members: Name Age
Rebecca Ruffin
Charles Parker Jr

1940 United States Federal Census

Name: Rebecca E Parker
Age: 22
Estimated Birth Year: 1918
Gender: Female
Race: Negro
Birthplace: Tennessee
Marital Status: Married
Relation to Head of House: Daughter
Home in 1940: Kansas City, Jackson, Missouri
Map of Home in 1940: Kansas City, Jackson, Missouri
Street: Ballaire [3600 Bellaire Ave. is now a vacant lot.]
House Number: 3610 [sic]
Inferred Residence in 1935: Kansas City, Jackson, Missouri
Residence in 1935: Same Place
Resident on farm in 1935: No
Sheet Number: 1B
Occupation: Housework [for a private family]
Attended School or College: No
Highest Grade Completed: High School, 4th year
Hours Worked Week Prior to Census: 24
Class of Worker: Wage or salary worker in private work
Weeks Worked in 1939: 13
Income: 78
Income Other Sources: No
Household Members: Name Age
Fannie E Ruffin 48
Rebecca E Parker 22
Ophelia V Ruffin 19
Neoma B Ruffin 16
Dorothy M Ruffin 13
Leon F Parker [grandson of Fannie and son of Rebecca and Charlie Parker] 2

In the Kansas City (MO) Times of June 11, 1941, page 14, under a column titled "DIVORCE SUITS", it shows that a divorce was granted in Independence, Missouri to "Rebecca E. from Charles Parker." The suit had been filed by Rebecca earlier that April according to the Kansas City (MO) Star of April 27, 1941, page 5B.

Ohio, County Marriage Records, 1774-1993

Name: Rebecca E Ruffin
Gender: Female
Age: 32
Birth Date: 1918
Marriage Date: 15 Sep 1950
Marriage Place: Stark, Ohio, USA [sic; they were married in Maumee, Lucas County, Ohio on June 30, 1950]
Father: Marcus Ruffin
Mother: Fannie Garland
Spouse: Charlie Ross Davis
Film Number: 002251748
Household Members: Name Age
Rebecca E Ruffin
Fannie Garland
Marcus Ruffin
Charlie Ross Davis
Pecola Baker
Charlie Davis

U.S., Social Security Applications and Claims Index, 1936-2007

Name: Rebecca Ruffin Parker
[Rebecca Ellen Davis]
[Rebecca Turner]
[Rebecca Henderson]
[Rebecca Davis]
[Rebecca Ruffin Ruffin ]
Gender: Female
Race: Black
Birth Date: 23 Feb 1918
Birth Place: Mason, Tennessee
Death Date: 29 Jan 2004
Father: Marcus Ruffin
Mother: Fannie E Garland
SSN: 500038363
Notes: Nov 1938: Name listed as REBECCA RUFFIN PARKER; Oct 1953: Name listed as REBECCA ELLEN DAVIS; Aug 1955: Name listed as REBECCA ELL TURNER; : Name listed as REBECCA RUF HENDERSON; 13 Feb 2004: Name listed as REBECCA E DAVIS
Household Members: Name Age
Rebecca Ruffin Parker
Marcus Ruffin
Fannie E Garland

U.S., Social Security Death Index, 1935-2014

Name: Rebecca E. Davis
SSN: 500-03-8363
Last Residence: Pasadena, 91109, Los Angeles, California, USA
Born: 23 Feb 1918
Died: 29 Jan 2004
State (Year) SSN issued: Missouri - Before 1951

U.S., Social Security Applications and Claims Index, 1936-2007

Name: Charlie Ross Davis Jr [whom Rebecca married in 1950; they were both living in Detroit, Michigan at the time but were married in Lucas County, Ohio.]
Gender: Male
Race: Black
Birth Date: 15 [sic] Oct 1913
Birth Place: Memphis Shel, Tennessee
Death Date: 15 Sep 1989
Father: Charlie Davis
Mother: Pecolia Baker
SSN: 412030566
Death Certificate Number: 139880
Notes: Dec 1936: Name listed as CHARLIE ROSS DAVIS; Mar 1942: Name listed as CHARLES ROSS DAVIS JR; 22 May 1998: Name listed as CHARLIE R DAVIS
Household Members: Name Age
Charlie Davis
Pecolia Baker
Charlie Ross Davis

U.S., Social Security Death Index, 1935-2014

Name: Charlie R. Davis
SSN: 412-03-0566
Last Residence: Pasadena, 91103, Los Angeles, California, USA
Born: 11 Oct 1913
Died: 15 Sep 1989
State (Year) SSN issued: Tennessee - Before 1951

California, Death Index, 1940-1997

Name: Charles Ross Davis
Social Security #: 412030566
Gender: Male
Birth Date: 11 Oct 1913
Birth Place: Tennessee
Death Date: 15 Sep 1989
Death Place: Los Angeles
Mother's Maiden Name: Baker

Click here for a discussion of Bird's marital history: https://www.sandybrownjazz.co.uk/TracksUnwrapped/LairdBaird.htm