Dave Jackson (1902-1978) was a game warden who lived in the Maine North Woods through the first half of the 20th century. He was born and raised near the confluence of the Allagash River and St. John River. As canoeing became a popular recreational activity he was remembered as the man with the greatest canoe skill on the Allagash Wilderness Waterway. He routinely took canvas canoes through rapids at the mouth of the Allagash and both upstream and downstream through Big Black Rapids on the St. John River.
Dave was born 2 September 1902 at Ouellette Farm on the St. John River. He was the eldest of six children of David Jackson and Elizabeth (Gardner) Jackson. The Jackson family owned a farm in Allagash, Maine. Dave's father farmed the land during the brief summers and assisted logging operations during the remainder of the year. Dave and his father freighted supplies up the St. John River in pine pirogues from the Bangor and Aroostook Railroad at Saint Francis, Maine. Dave left school after the eighth grade to learn log driving before leaving home to work as a timber cruiser for International Paper Company. He learned from the river drivers how to build a soft mattress of fir boughs to keep his bedding dry above the moist ground or snow.
In 1929 Dave Jackson was employed as a Maine game warden assigned to live and work out of a small 255-square-foot (24-square-meter) cabin on Umsaskis Lake on the upper Allagash River. The cabin was one-quarter mile (400 meters) from the unpaved Lacroix road from Lac-Frontière, Quebec and could be reached only on snowshoes for most of the winter. His patrol area consisted of twenty townships with a combined population of about 3000 living mostly in 50 scattered logging camps. Patrols lasting up to ten-days were made on snowshoes through the winter months and by canoe or on foot during the summer. The area had been logged in the early 19th century, and Édouard Lacroix began cutting second-growth hardwood and pulpwood in 1926. Many of the men working in the logging camps were French Canadians unfamiliar with Maine laws, unable to read English, and accustomed to animal trapping and hunting for food. Warden Jackson narrowly avoided being hanged by an illegal snare set for deer. When he arrested poachers, they often had to snowshoe more than 60 miles (100 km) to court.