The Wild Horse Dilemma by Bonnie Gruenberg quotes a former Chincoteague resident that due to the decimation of the feral herds after the Ash Wednesday storm of 1962 select mares with good conformation were bred to stallions of other breeds including Morgan. An article from the Virginia newspaper Radford News Journal in 1977 stated that new stock was crossed into the feral herd every 9 to 10 years and Morgans were one of the breeds used. A Chincoteague Pony management plan from 2014 stated that "A wide variety of breeds such as Morgan, Welsh, Shetland, Arabian, and Mustangs were placed in the Chincoteague pony herd to increase genetic diversity and vigor among the present stock".
Local pony owner E.P. Timmons wrote to The Breeder’s Gazette 1916 asking where he could buy a “French Canadian” stallion to improve his Chincoteague Ponies. Timmons received a reply from Dr. Carl Gay of the University of Minnesota saying he was probably looking for “an old-fashioned Morgan” and that such a cross wouldn't sell well. Whether or not Timmons bought a stallion and if this is one of the aforementioned Morgan outcrosses is unknown.
Local pony owner E.P. Timmons wrote to The Breeder’s Gazette 1916 asking where he could buy a “French Canadian” stallion to improve his Chincoteague Ponies. Timmons received a reply from Dr. Carl Gay of the University of Minnesota saying he was probably looking for “an old-fashioned Morgan” and that such a cross wouldn't sell well. Whether or not Timmons bought a stallion and if this is one of the aforementioned Morgan outcrosses is unknown.