Looking for Information About the Chase Morris Family Who Resided IN New Zealand

There is a Col. Charles Chase Morris residing in NZ. His son Robert Chase Morris also resides there and is in many PapersPast articles. Robert's children all have Chase Morris as their surname. I thought this must link to a Chase somewhere in the line but I am unable to find them. Any help greatly appreciated. Morris or Morriss, has been used as middle names for some of my great uncles and cousins, I just can't find the connection. I definitely have an NZ connection re the Chase family. Cheers, Irene Chase.