two naming conventions questions

The timeframe I'm dealing with is 1700-1885. I've got two major questions on how to handle names.]dtr vs.datter vs son I've got two issues. One is space on an upward chart. Using dtr would save space. The other is being able to explain why some are dtr and some datter I'd like to consistently use dtr, but need to know if that's OK or I'm I just being a lazy person. For example one 2nd great grandmother was recorded as Marte Chrisofersdatter, Marthe Chrisphersdtr and Marte Kristofesdtr and here as Martha Christopherson. Using Norwegian names vs.the AmericanI've got two of the common issues. One is standardizing on American's last name scheme. One of my 2nd great grandfather left Norway as Anders Olsen. I've used he AKA feature to record the various names used here (Anders Olson, Anders Anderson, Mr. Shomaker, Andrew Anderson, Anders O. Sinnerid, Andrew Olson. Is best to have his primary name his birth name or what most descendants would use? A large group of the women changed there given name. Mathea became Mattie. Aase became Mary. Ingeborg became Emma. What is the best way to handle this?