ACEC is named after Aglace Chapman who spent most of his childhood in the bush. Where his parents and siblings taught him important skills such as: hunting, trapping and fishing. During his teenage years, he worked in the Sachigo Lake Mines. After leaving the mines, he spent ten years in the community of Bearskin Lake, where he returned to hunting and trapping.
In 1944, Aglace went to Big Trout Lake to begin commercial fishing for lake trout. Aglace fished for eighteen years, until the commercial fishing was stopped. During the winter, he went trapping about 55 km north of the mines on the Sachigo River , which was approximately 220 km from Big Trout Lake.
When Aglace decided to give up trapping, he settled in Big Trout Lake. Soon after, he was elected Chief and served in that capacity for seven years. When he first took office, the community had very few services, he was able to obtain government grants, which allowed him to create jobs in the community. During his tenure as Chief, Aglace made a lot of changes in the community such as an airport, nursing station, a Band office, a co-op store and a community radio station.
Aglace not only helped his own people of Big Trout Lake, but also many others from nearby communities. He was instrumental in forming Grand Council Treaty #9 in 1973, (now known as Nishnawbe-Aski Nation), along with his fellow Chiefs. Aglace was also very helpful to the other Chiefs of Treaty#9, especially the younger Chiefs where he demonstrated both patience and guidance in helping them to understand how the government operated and how to deal with government officials. Aglace gave selflessly; anyone who spent time with Aglace was richer for it.
Change did not frighten Aglace, he saw change as a challenge. He knew that values and attitudes would change. Also, he understood the traditional lifestyle and its inherent values, because he was from that generation. He had the wisdom to see that the traditional lifestyle could blend with progress, rather than be destroyed by it.
Sadly, on November 21, 1984, Aglace Chapman passed away peacefully, after a lengthy illness.