In the 1950s the southern part of Point Clark was sold to cottagers such as Leo Rosinke, the Beiyer, Dodsons, Cooper, Querengesser, Bayer, Kipfer, Rogers, Chenault, Hornung, Braun, McGlaughlan, Hummels, Reicks, Lattner, Heer, Carter, Pole, Coughlin, Vines and Tamowski families. These families were from the Kitchener-Waterloo, Guelph, Stratford, Listowel, London and Preston (now Cambridge) Ontario areas as well as the greater Detroit areas. During this time, there was a private gravel road named Given Road the present day Huron Road ended at the present day Pottawattmi Road. Point Clark at that time was a vast forest with few cottages and roads. The roads mostly gravel were maintained by the Elliot family at that time and in the winter time people had snow shoe and use toboggans to get into the cottage. Many of these cottages remain in the hands of their descendants and are no longer cottages but have been winterized for year long enjoyment or are now permanent residences. During this time, Roy Lattner had drilled an artesian well which served many of the cottages and provided a network of telephones between cottages using army surplus equipment. Roy Lattner was known as the toy man, he had early vintage speed boats, mini bikes, motor cycles, boats of all types and the first generation seadoos. Many neighbours built boat houses on the beach in the 1960s to house their boats. These neighbours had many Canada Day(Dominion Day), Labour day and Victoria Day celebrations which included roasting of pigs, wiener roasts, hips of beef and pot luck dinners for these celebrations along with music from rock and roll to polka music.
John C. Campell, the last official keeper of the light, served from 1947 until the light was finally automated in 1962. Marlene and Elmer MacKenzie were paid a small sum to live in the dwelling as caretakers from 1963 to 1964, and Elden Lowry served in this capacity from 1964 to 1967.
In the 1960s cottages were developed inland. The Amberley store at that time owned by Bob McNay, delivered milk, bread, eggs, newspapers and groceries to cottagers in the summer months via a panel truck. The Amberley Beach Bar owned by the Elliots and Lighthouse Variety were operating during this time serving lunches and dinners. The Lighthouse variety operated a Shell gas station at that time. During the 1960s the first telephone’s were installed by HuronTel on the lake front and they were mostly party lines at that time.
In 1966, the lighthouse was declared a national historic site, a first for an Ontario lighthouse, and the following year it was acquired by Parks Canada as a monument to the vital role lighthouses played in the navigation of the Great Lakes. As part of the transfer agreement, the Canadian Coast Guard remained responsible for the light in the tower.