Huia on Family Tree Circles

Hello,
I am trying to find my gg grandfather Edward Saunders Clark/e. I know Edward Saunders Clark/e and his wife Susan...nee Murley came to Dannevirke from Hokitika about 1880. He was a shopkeeper and the name of his shop was E S Clarke Traders. I believe William Gaylor who was married to Sarah Jane Hird also worked there. Sarah Jane was a niece to Edward Saunders Clark/e.
Edward Saunders Clark/e died in 1900 and Susan died 1904. They are both buried in Dannevirke
Any information would be so greatly appreciated.
Thank you
Huia