You have the 1920 Census record, but I needed add'l information on parents birth place and ages of the children.
The 1920 Census for Mount Pleasant, Rolette Co, ND
Thomas Maloney, born in Ontario, Canada
Caroline, born in England
Alfred, age 13 (1906/1907)
Lucy, 5 (1914/1915)
Charlott, 3, (1916/1917)
The 1930 census Caroline with Lucy and Charlotte, also included adopted son, Lyle, age 9 (1920/1921), born ND to both parents born in ND
The 1930 has Alfred E, age 23 (1906/1907), married to Alice M 23, and son Alfred, age 1 8/12.The census was enumerated in April, so Alfred, Jr., born about
I found nothing concrete on Lucy, Charlotte, or Lyle.
An obituary was "supposedly" published on 28 Sep 2006 in the Grand Forks Herald, Grand Forks, for Alfred E. Maloney, died at age 78 (1928) (Matches the data for the son of Alfred E).BUT, all I found was a death notice:
Maloney, Alfred E., Jr.
Published Thursday, September 28, 2006
Maloney, Alfred E., Jr., 78, East Grand Forks, MN. Mass of Christian Burial: 2:00 p.m. Friday, September 29, 2006 at St. Michael's Catholic Church, Grand Forks, ND. Visitation: 5:00 to 7:00 p.m. with a 6:30 p.m. Prayer Service on Thursday, September 28, 2006 in Stennes Funeral Home, East Grand Forks, MN (Stennes Funeral Home, East Grand Forks)
I find a listing for Alfred E. Maloney, born July 1928 at 1224 Walnut Street, Grand Forks, ND 58201.A Paul A. Maloney, born May 1941; Michael Maloney, born August 1950; Christopher R. Maloney, born Dec 1960 are listed at the same address.Phone shown for Michael is 701-772-0425
The Random Acts of Genealogical Kindness has three volunteers in Douglas County http://www.raogk.org/oregon.htmhttp://www.raogk.org/oregon.htmRead the Guidelines first before contacting ONE AT A TIME.Ask for an obit.Dot works North Douglas, but the Roseburg newspaper archives "should" be available there also.If you can make contact with the sons of Alfred E, Junior, they should know about grandpa.