On April 17, 1980 her estate was sold at auction by Christie's.
In 1983 the Italian Baroque painting of St John the Baptist Preaching by Mattia Preti was purchased partially with funds from the Kathryn Bache Miller Fund for the Legion of Honor museum in California.

In 1988, the Miller Theatre at Columbia University was named in her honor.
On April 17, 1980 her estate was sold at auction by Christie's. In 1983 the Italian Baroque painting of St John the Baptist Preaching by Mattia Preti was purchased partially with funds from the Kathryn Bache Miller Fund for the Legion of Honor museum in California.
In 1988, the Miller Theatre at Columbia University was named in her honor.
Kathryn Bache Miller