My great, great grandfather, Lars Peter Rasmussen was born in Copenhagen, Denmark in 1870. His parent's names were Hnas Peter Rasmussen and Sophie Olsen. Lars Peter was a seaman, who "jumped ship" in Cooktown, Australia to marry Mary Doyle. I am keen to find out whether Lars Peter had any siblings.
Sorry, Lars Peter Rasmussen was Hans Peter Rasmussen.
Do you have more birth information? Copenhagen is a big place and birth records are kept by parish.
And, I am a bit confused as to who is Lars and who is Hans in your description above.