Hans Jacobsen Hansen

Hi I am new to this site and have recently started to trace my fathers family history. I havent got much because I am unsure of where to start. This is what I have so far: My gt grandfather was Jacob Hansen and was born in either Karo or Keogi, Norway. Karo is on his wedding certificate and Keogi is on one of his sons birth certificates. He was born in 1871 and died in 1941 in Australia. He migrated at the age of 7 to Australia, which would have been in 1878. His parents were Hans Jacobsen Hansen and his mother was May Hansen (nee Jensen). Hans was a labourer as was Jacob. That is all we can find out. He apparantly didnt talk about his parents or family, where he was from or his life in general. If anyone can help me at all I would really appreciate it as all the sites I have found are in Norwegian and I cant read it! If you want to email me, my address is [email hidden] Thanks Allison