Joseph and Mary Reynolds had one son named Blake who was born in McGregor their first year of residence there.
Blake died during his late-twenties.
Joseph and Mary Reynolds gifted a fountain and a park to the town of McGregor in memory of Blake.

Reynolds died of pneumonia at the age of 71 in his room at the Congress Mine in Congress, Arizona.
After his death his estate was valued at between $8 and $10 million completely debt free.
His estate included real estate, steam packets, grain elevators, mining properties in Arizona, California, Colorado, Kansas, Illinois, Iowa and Missouri, and the Hot Springs Railroad, a 24-mile-long (39 km) narrow gauge line running from Malvern, Arkansas, to Hot Springs, Arkansas.
He is buried at a family plot in Mount Hope Cemetery (Chicago) with his wife, Mary Morton Reynolds, and his son, Blake.

Reynolds established an endowment with the University of Chicago to build the Reynolds Club, which as of October 2017, is still used as a student union.
This endowment included a scholarship fund.
Construction started on the Tudor-style building in 1901 and was designed by the firm of Shepley, Rutan & Coolidge.
Originally planned as a library, the Reynolds Club included a billiard room, a bowling alley, and a theater.

His wife, Mary Morton, inherited the Diamond Jo Line, and after she died in 1895, it was acquired by a partnership led by her brother.
In 1911, the steamboat fleet was sold to Streckfus Steamers.

W. C. Handy includes a reference to the Diamond Jo Line in his song Saint Louis Blues, "You ought to see dat stove pipe brown of mine / Lak he owns de Dimon Joseph line."
Joseph and Mary Reynolds had one son named Blake who was born in McGregor their first year of residence there. Blake died during his late-twenties. Joseph and Mary Reynolds gifted a fountain and a park to the town of McGregor in memory of Blake.
Reynolds died of pneumonia at the age of 71 in his room at the Congress Mine in Congress, Arizona. After his death his estate was valued at between $8 and $10 million completely debt free. His estate included real estate, steam packets, grain elevators, mining properties in Arizona, California, Colorado, Kansas, Illinois, Iowa and Missouri, and the Hot Springs Railroad, a 24-mile-long (39 km) narrow gauge line running from Malvern, Arkansas, to Hot Springs, Arkansas. He is buried at a family plot in Mount Hope Cemetery (Chicago) with his wife, Mary Morton Reynolds, and his son, Blake.
Reynolds established an endowment with the University of Chicago to build the Reynolds Club, which as of October 2017, is still used as a student union. This endowment included a scholarship fund. Construction started on the Tudor-style building in 1901 and was designed by the firm of Shepley, Rutan & Coolidge. Originally planned as a library, the Reynolds Club included a billiard room, a bowling alley, and a theater.
His wife, Mary Morton, inherited the Diamond Jo Line, and after she died in 1895, it was acquired by a partnership led by her brother. In 1911, the steamboat fleet was sold to Streckfus Steamers.
W. C. Handy includes a reference to the Diamond Jo Line in his song Saint Louis Blues, "You ought to see dat stove pipe brown of mine / Lak he owns de Dimon Joseph line."
Joseph "Diamond Jo" Reynolds