Samuel Leeds Allen was the founder of S.L. Allen & Company in Philadelphia. He was the inventor of, and his company manufactured, both the Flexible Flyer sled and Planet Jr farm and garden equipment. For over one hundred years these products were the best selling and most famous market gardening tools and American sleds. During his lifetime and for the first half of the 20th century S.L. Allen was far more renowned for his company's seed drills and cultivating equipment than the sleds.

Cinnaminson Township is a township in Burlington County, in the U.S. state of New Jersey. Cinnaminson Township borders the Delaware River, and is an eastern suburb of Philadelphia. As of the 2020 United States census, the township's population was 17,064, an increase of 1,495 (+9.6%) from the 2010 census count of 15,569, which in turn reflected an increase of 974 (+6.7%) from the 14,595 counted in the 2000 census. The township, and all of Burlington County, is a part of the Philadelphia-Reading-Camden combined statistical area and the Delaware Valley.