In 1941, De Lue won a competition to create sculpture for the U.S. Post Office and Courthouse Building in Philadelphia, and from then on he stopped being an assistant for other artists and only worked on his own commissions and creations.
De Lue's works can be found in many museums across America. Like many other sculptors of his generation, he executed architectural works. He was also a prolific designer of medals and medallions.
In 1967, De Lue won the American Numismatic Society's J. Sanford Saltus Award for Outstanding Achievement in the Art of the Medal, known as the Saltus Award.
Beginning in 1964, for many years De Lue was a Trustee of Brookgreen Gardens, as well as Chairman of the Art Committee.[2]
In his later years, De Lue and his wife Naomi (who served as a model for many of his statues) lived in the Leonardo section of Middletown Township, New Jersey, a small shore town with a bayside beach and long-distance view of lower Manhattan.[3] De Lue cited the 23rd Psalm and the words "He leadeth me beside the still waters..." as the inspiration by which he arrived in Leonardo from New York City. Although he continued to maintain his NYC apartment, it was in his Leonardo studio that many of his largest statues were made. One of the last was a commission by a private individual intended for the Alamo in San Antonio, Texas. The bigger-than-life statue of Bowie, Travis and Crockett was considered "too violent" by the Daughters of the Republic of Texas for placement in a sacred chapel. A compromise was sought, that the statue be installed outside the building in the large courtyard rather than inside. DeLue and his patron, a wealthy Texan, preferred the statue be installed in the interior space for which it was made. Unfortunately, the impasse was never resolved in De Lue's lifetime.
Donald and Naomi De Lue are buried in Manalapan Township, New Jersey at the cemetery at Old Tennent Presbyterian Church.
The Spirit of American Youth Rising from the Waves. Surrounding the 22-foot (6.7.m) statue's base is the inscription: "MINE EYES HAVE SEEN THE GLORY OF THE COMING OF THE LORD."[17]
^"Boy Scout Memorial, (sculpture)". Smithsonian Art Inventories Catalog. Archived from the original on November 3, 2016. Retrieved June 4, 2019 – via siris-artinventories.si.edu. item IAS 76009553.
Goode, James M. The Outdoor Sculpture of Washington D.C., Smithsonian Institution Press, Washington D.C., 1974
Kvaran, Einar Einarsson, Architectural Sculpture in America, unpublished manuscript
Nishiura, Elizabeth, editor, American Battle Monuments: A Guide to Military Cemeteries and Monuments Maintained By the American Battle Monuments Commission, Omnigraphics Inc., Detroit, Michigan, 1989