A self-taught folk artist, Ellinger grew up on his grandparents' farm in Trappe. From these humble beginnings, he embarked on a creative journey that would later become a bridge between generations and cultures. Ellinger's progress as an artist accelerated in 1935 when he joined the Works Progress Administration (WPA) to contribute to the Index of American Design project. His artistic prowess rapidly gained recognition, leading to a series of solo exhibitions in prominent art hubs such as Philadelphia and New York during the mid-1940s. Ellinger's paintings, depicting picturesque scenes of Pennsylvania German barns, country auctions, Amish family farms, and other rustic vistas, played a pivotal role in kindling widespread fascination with Pennsylvania German culture during the latter half of the 20th century. His work resonated deeply with an audience captivated by folk art and nostalgic reverence for an agricultural past. Characterized by vibrant colors and adorned with Pennsylvania German motifs, including birds, tulips, and hearts, Ellinger's art continues to captivate collectors of folk art and Americana.