Alphonse Jongers was born on November 17, 1872, in Mezieres, France and died on October 2, 1945, in Montreal, Canada.

Born in France, Congers trained under Delaunay and Gustave Moreau at the Ecole des Beaux Arts, and then studied for two years in Spain. Congers moved to French Canada in 1895, where at the age of twenty-three he opened a studio in Montreal. It was probably there that Ranger and Congers met and became friends, as Ranger traveled to Montreal frequently in the late 1890s. In 1900, just before making his first of several trips to Old Lyme with Ranger, Congers moved to New York City. His first known exhibition in New York was a March, 1902, group show of seven painters (including fellow Lyme artists Louis Paul Dessar, George Bogert, and Ranger) at Durand-Ruel Galleries.

He was a member of the Society of American Artists and was elected an Associate of the National Academy of Design in 1906. He received a silver medal at the the St. Louis Exposition in 1904 and the third class medal at the Paris Salon of 1909.