Shonts was born in Crawford County, Pennsylvania, on May 5, 1855.[1] He was the son of Dr. Henry Daniels Shonts (1823–1910),[2] and Margaret Nevin (née Marshall) Shonts (1825–1915).[1] His maternal grandparents were H. David Marshall and Jane (née Waid) Marshall.[3] His father was a well known pioneer doctor who practiced in Erie, Pennsylvania, before moving to Centerville, Iowa, in 1861.[2]
After graduation from Monmouth College, he became an accountant and was employed by national banks in Iowa to standardize and simplify methods of bookkeeping before studying law and practicing for a short time in Centerville. He became associated with General Francis Marion Drake, who had large financial and railroad interests, and who placed much of the management and construction into Shonts' hands. With associates, he secured control of the Toledo, St. Louis and Western Railroad, commonly known as the Clover Leaf Road, which he rehabilitated and made successful.[1]
In 1905, U.S. President Theodore Roosevelt appointed Shonts chairman of the Isthmian Canal Commission, working closely with newly appointed chief engineer John Frank Stevens on the construction of the Panama Canal. Stevens was appointed to improve the work of the commission after the original chief engineer, John Findley Wallace, had resigned due to lack of support from the commission.[6] Shonts served in this role on the commission until February 1907, when he was elected the president of the Interborough Rapid Transit Company where he assumed his duties on March 4, 1907, and served until his death in 1919.[7]
In 1881, Shonts was married to Harriet Amelia "Millie" Drake (1856–1929). She was the daughter of Mary Jane (née Lord) Drake and Gen. Francis Marion Drake, the Governor of Iowa from 1896 to 1898.[9] Shonts later served as chairman of the board of Drake University in Iowa (founded by his father-in-law in 1881).[8] Together, they were the parents of two daughters:
In 1906, the family began occupying the home at 1526 New Hampshire Avenue in Washington, D.C.[10] When Shonts moved to New York City to begin working with the Transit Company, he stayed at the Metropolitan Club while his family remained in Washington. When they visited New York City, they all stayed at the St. Regis.[7]
After suffering a breakdown from overwork,[20][21][22][23][24] Shonts died on September 21, 1919, at 930 Park Avenue, his home in Manhattan.[25] After a funeral at the Brick Presbyterian Church on Fifth Avenue, he was buried at Woodlawn Cemetery, Bronx.[26] In his will, he left the majority of his estate not to his wife and children, but to his "friend" Mrs. Amanda Thomas, which led his wife to file a $1,000,000 suit against Mrs. Thomas "for alienation of affection".[9][27] His widow who was "destitute" at the time of her death, was buried at Oakland Cemetery in Centerville, Iowa.[28]
Through his eldest daughter Theodora,[29][30] he was a grandfather of Emmanuel Théodore Bernard Marie II d'Albert de Luynes (1908–1980), Duke of Chaulnes and Picquigny.[31]
Through his daughter Marguerite, he was a grandfather of Theodore Rutherford Glenn Bingham (1919–1944), who was born in Cuba and was declared Missing in Action in February 1944 in Ii, Finland, aged 24, during World War II;[32] he married Ardath Crane "Noni" Smith in 1943, a daughter of millionaire Clifford Warren Smith (who later married actress Claire Luce).[33][34] Bingham's widow was murdered in 1953 while married to her eighth husband, Joe Glen Kuykendall, who was tried and acquitted for her murder.[35]