per june 2018 email from Gail Buckingham Credit (via Bil Chen):
“My grandfather and his younger brother (the youngest of them all), William, married sisters, Lillian and Caroline “Carrie” Morgan, and they all moved to Michigan (Detroit)
“My grandparents had two children, a daughter, Dolores, and my father, Harry Morgan Buckingham. William and Caroline had two sons, Glen and William “Bill.”
“My father married my mother, Mildred Elizabeth “Liz” Deupree, in 1947, and there were four of us kids: Glenn Edward (b 1949, d 2015), Gail Lisbeth (me) (b 1951), Harry David (b 1954, d 2003) and Barbara Jo (b 1956). I’m married to Frank Credit, and we have three daughters, Kalli, Stacey and Lindsay, and eight grandchildren

1930FCI Harry Buckingham and family; United States Federal Census > Michigan > Wayne > Detroit (Districts 501-750) > District 680; image 13 of 23 @ancestry.com; Source Citation: Year: 1930; Census Place: Detroit, Wayne, Michigan; Roll: 1059; Page: 7A; Enumeration District: 680; Image: 1027.0.
Harry Buckingham 36
Lillian Buckingham 34
Dolores Buckingham 7
Harry Buckingham 2 6/12

1940FCI United States Federal Census; Michigan Wayne Detroit 84-1572; 2 pages, image 15-16 of 46 @ancestry; Source Citation: Year: 1940; Census Place: Detroit, Wayne, Michigan; Roll: m-t0627-01888; Page: 8A; Enumeration District: 84-1572
Original data: United States of America, Bureau of the Census. Sixteenth Census of the United States, 1940. Washington, D.C.: National Archives and Records Administration, 1940. T627, 4,643 rolls.
Home in 1940: Detroit, Wayne, Michigan
Street: Mack Tuain Avenue
House Number: 14376; Farm: No
Inferred Residence in 1935: Detroit, Wayne, Michigan
Residence in 1935: Same House
Resident on farm in 1935: No
Sheet Number: 8A
Number of Household in Order of Visitation: 194
House Owned or Rented: Rented
Value of Home or Monthly Rental if Rented: 35
Household Members:
Harry Buckingham 48
Lillian Buckingham 43
Dolores Buckingham 16
Harry Buckingham 12

AnnArbor1942 Directory; Michigan Ann Arbor 1942 Ann Arbor, Michigan, City Directory, 1942; image 34 of 297 @ancestry
Source Information: Ancestry.com. U.S. City Directories, 1822-1995 [database on-line]. Provo, UT, USA: Ancestry.com Operations, Inc., 2011.
Name: Harry A Buckingham; Gender: Male
Residence Year: 1942
Street address: 552 3d
Residence Place: Ann Arbor, Michigan, USA
Occupation: Took Maker
Spouse: Lillian F Buckingham
Publication Title: Ann Arbor, Michigan, City Directory, 1942