Hi Jill,
I found another two daughters of Arthur, their marriages and Kaare Emanuels marriage. I haven’t found Reidar’s marriage in Halden… remember that it’s the bride that chooses the church.
It looks like you could have quite a few relatives in Norway…

Østfold fylke, Halden, Klokkerbok nr. Ga 0017 (1944-1949), Ekteviede 1944, side 5. http://www.arkivverket.no/URN:kb_read?idx_kildeid=7361&i...
Marriage 4th of March 1944
Reidar Johan Sverre Bye, born 29th of October 1913 in Sarpsborg, police
Astrid Margrete Valeur, born 12th of March 1915 in Hakden, bookbinder
Grooms father: Johan Iversen Bye
Brides father: Arthur Valeur

Østfold fylke, Halden, Klokkerbok nr. 10 (1900-1923), Fødte og døpte 1915, side 167. http://www.arkivverket.no/URN:kb_read?idx_kildeid=4899&i...
Born 12th of March 1915, baptized 2nd of May 1915, born out of wedlock
Astrid Margrete
Parents: bachelor Arthur Valeur, born 1893 and unmarried girl Jenny Matilde Hansen, born 1894
Goodparents: wife Mathilde Hansen, unmarried girl Thora Eng, driver Oscar Hansen, Rolf…?bretsen

Østfold fylke, Halden, Klokkerbok nr. Ga 0017 (1944-1949), Ekteviede 1945, side 11. http://www.arkivverket.no/URN:kb_read?idx_kildeid=4899&i...
Marriage 27th of January 1845
Karlo Åkermann, born 17th of July 1917, Halden, mechanic
Else Marie Valeur, born 2nd of June 1821, Halden, shoe worker
Grooms father: Edvin Åkermann
Brides father: Arthur Marinius Valeur

Østfold fylke, Halden, Klokkerbok nr. 10 (1900-1923), Fødte og døpte 1921, side 233. http://www.arkivverket.no/URN:kb_read?idx_kildeid=4899&i...
Born 2nd of June 1921, baptized 26th of June 1921
Else Marie
Parents: Arthur Marinius Wahllør, born 1897 and wife Jenny Mathilde, maiden name Hansen born 1894
Address: Ø. Bankegd. 5
Goodparents: the father, shoe worker Anders Hansen, widow Mathilde Hansen, unmarried girl Valborg Hansen

Østfold fylke, Halden, Klokkerbok nr. Ga 0017 (1944-1949), Ekteviede 1948, side 69. http://www.arkivverket.no/URN:kb_read?idx_kildeid=4899&i...
Marriage 19th of June 1948
Kaare Emanuel Valeur, born 4th of January 1920, Halden
Synnøve Strøm, born 24th of April 1920, Asak
Grooms father: Arthur Marinius Valeur
Brides father: Martin Strøm

Regards,
Arna