Reverend John Ramsden Wollaston (28 March 1791 – 3 May 1856), was an Anglican clergyman who was instrumental in the establishment of the Church of England in Western Australia.
Wollaston was born in London and educated at Charterhouse School where his father, Edward Wollaston, was a master. After taking holy orders, in May 1819 he married Mary Amelia Gledstanes with whom he had five sons: John R Wollaston, William E Wollaston, Henry N Wollaston, George G Wollaston and Edward C Wollaston and five daughters: Elizabeth M Wollaston, Mary E Wollaston, Mary A Wollaston, Agnes E Wollaston and Sophia C Wollaston . In 1840 Wollaston applied for the position of Chaplain for the Western Australian Land Company, a speculative venture that was seeking emigrant settlers to go to Australind, Western Australia near Port Leschenault. The company failed to appoint him officially but continued to promote the venture by saying Wollaston was available. In the confusion, Wollaston proceeded to the new colony believing that he had been appointed as Colonial Chaplain and that an official stipend would be forthcoming on his arrival.
By the time he arrived, the Australind settlement was on the verge of collapse, largely due to its isolation from the rest of the colony at the Swan River. Wollaston found himself nearly destitute and without a parish but with an offer from the Governor, John Hutt to pay him a stipend of 100 pounds a year once a church had been built. Together with his sons he purchased some land alongside the Preston River and a dilapidated ex-whalers cottage which he called "Charterhouse" and built a small timber chapel nearby. The church opened without consecration in September 1842 and is the second oldest still standing church in Western Australia, after All Saints Church at Henley Brook. It was later consecrated as St Mark's and is now located at the corner of Flynn and Charterhouse Close, Picton.