peder rasmusen family

Hi! Sometimes I don't know where my head is!!!I was asking about when this family, other than Rasmus, was born. I can figure out the years, pretty much, but wonder how to learn the month and day. Also, info on when Peder and Marit were married and what town. Had they any children other than the 3 mentioned. I was told there was/is a town named Tynset....and, this where the surname Tonseth/Tonset came from, that Peder took on here in the States. How would I go about finding if there are any relatives living in Norway? Full of questions, aren't I?(ha/ha)I want you all to know, this site is the VERY BEST and you all are GREAT!!!!!Many Thanks!! Juanita(jj)