The book The Sarawak Saga says that John Mervyn owned the farm at Lot 28 Con 3 in Sarawak about 1973. I have a photo of the house. They purchased it from people named Hind.
Also I have a group photo with Mrs. Elmer Kirk--it appears to have been taken about 1960 or so from the style of the women's clothes. She appears to be about 35-45 in the photo so I would guess she was born after 1920.
There were Mervyns on the 1901 census in Bentinck-Alexander age 64 wife Maragaret age 57, sons George age 27 and Mark age 17. There are no Mervyns in Sarawak on 1901 census.