Hi Steve64. Thamkd for all the help here. I have the marriage cert for Edith Fowler (Spinster) and Peter Andreas Petersen.(Bushman) Peter was age 40 and Edith 17. They married in Tepuke NZ.
Edith Fowler was born in Opunake 29 Oct 1902. Died 26 Oct 1981 Rotorua NZ
With Peter Andreas Petersen being 40 when married Edith, puts his birth date 1880, so can't be the other Peter Andreas Petersen Ships Captain.
Peter and Edith had 3 children. Gustav Orldolf born 9 Nov ?, Arthur Andrew, Eva Emily 27 May 1924. Peter left Edith in 1924 and no one had heard of or seen him since.
I did find the Cemetery Records for the other Peter Andreas Petersen and wife Elina. Peter Andreas Petersen 27/11/1935 age 83 Elina Petersen 28/6/1924 age 75. both at Karori Cemetery Wellington. Its a mystery where our Peter disappeared to.
There is an 1885 census of Kristiania (old name for Oslo) which has been transcribed and is searchable at the digitalarkivet. Here are those who are named Peter Andreas (spellings starting with Pe and containing Andr) with birthyear of 1880 +/- 5 years and links to them with their family Peter Andreas Johan is the only one with patronymic of Peterson but birthyear is outside the range:
Peter Andreas Johan Petersen 1873 m Langesund Skolegut