Here is what I have thus far for family members of this family:

Arthur William Morrison, parent= William Morrison and Anna Marie Hansen
Esther Elizabeth Elggren, parents=Adolph Frederick Elggren and Johanna Christina Samuelson
Children:
Arthur Wendall Morrison, 2 Nov 1905 Salt Lake City, Salt Lake, Utah, USA
married: #1-Lydia La Sena Christensen
                     Reta Maralyn Morrison b. 10 Aug 1925, SLC, UT (Married: Clarence Allred)
                     Arnold Wendell Morrison (Married: B.J.)
                     Gloria Lee Morrison (Married: Harry VonSoolen)
             #2-Ina Reese Johnson, 24 Oct 1970

Adrian Lorenzo Morrison, 26 May 1909 Salt Lake City, Salt Lake, Utah, USA (died at birth, twin to francis)

Francis Elggren Morrison, 26 May 1909 Salt Lake City, Salt Lake, Utah, USA
married: Cleopatra Mickelson
                     Francis Evan Morrison, (married Kay)
                     Ronald Mickelson Morrison, (Married Beverly)
                     Beverly Morrison, (married Darwin Thomas)
                     Douglas Morrison, (Married Kay)
                     Shirlee Anne Morrison, (Married Alan Kropf)
                     Richard Morrison
                     Joseph Arthur Morrison, (dies at birth)
                     Sue Elizabeth Morrison
                     Robert Bruce Morrison, (Married Linda)

Clarence Wilbur Morrison, 28 Aug 1910 Salt Lake City, Salt Lake, Utah, USA
Married: #1 Louisa Mickelson
                     Judy Kaye Morrison, (Married Steve F. Gilliland)
                     Craig Wilbur Morrison, (Married Karen Madsen)
                     Stephen Keith Morrison, (Died at birth)
                     Lynn Mickleson Morrison, (Married #1- Sharon, #2-Laurilynn
                     Linda Joann Morrison, (Married Michael Hitz)
                     Kerry Dean Morrison, (Married #1-Cheryl, #2-Lynn Stagg)

Jenna Vee Morrison, 4 Feb 1913, Salt Lake City, Salt Lake, Utah
Married: #1- Sherman R. Lloyd , 1937
                            Michael (Lloyd) Hammon, (I think he was adopted by Hammon) (Married)
              #2-Marion Hammon, 18 Jun 1940
                            Helen Hammon
                            Rebecca Hammon
                            Esther Hammon
                            Arthur Hammon
                            Christine Hammon
                            Elaine Hammon

Anna Marie Morrison, 17 Oct 1915 Salt Lake City, Salt Lake, Utah, USA
Married: #1 George Hemicke Kalmar
              #2 Don Alfred Anderson
                         Don Arthur Anderson

Frederick William Morrison, 17 Feb 1918 Richfield, Sevier, UT, USA
Married: Lillian May Boss, 3 May 1940
                   Marianne Elizabeth Morrison, (married)
                   Rick Morrison, (Married: Cherre)
                   Kathy Morrison, (Married Keith)

Margorie A. Morrison, 1920 Utah
Married: #1- Carl Holm , #2-Harold Wagner

Reed Elggren Morrison, 18 Mar 1922, Utah
Married: #1-Carol,
                      Steve Morrison
                      Denny Morrison, (Married: Susan)
                      Patti Morrison, (Married: Jerry Jennings)
              #2- Melba Janet James Marble

Charles Grant Morrison, 18 Mar 1922, Utah (Twin to Reed)
Married: 6 Dec 1943, #1 Marilyn Patricia Cunningham, d. 9 Sep 2006
                    Dixie Morrison, (Married: Daniel Dixon)
                    Bill Morrison, (Married Diane)
                    Scott Morrison, (Married Launa)
                    Brian Morrison, (Married Kathleen)
                    Tim Morrison, (Married Karen)
                    Marilee Morrison, (Married Gordon Beh)
                    Britt Morrison, (Married Kay)
                    Suzie Morrison, (Married Kevin Woodward)
                    Melissa (Gleave) ?
              #2- Elizabeth Bradshaw

This what I have right now (July 17, 2014 - updated). If there are people missing from this family, or holes to be filled and you can help, please let me know. Thank so much!