In the late 19th century, St. Paul's two leading architects were Cass Gilbert and Clarence H. Johnston. They were rivals and good friends, dating back to their days as classmates at the Massachusetts Institute of Technology.
Then something came between them — a house on Summit Avenue.
"They started to part ways as they were battling for commissions," said Ryan Knoke, an architectural historian who heads the Clarence H. Johnston Society.
The house at 701 Summit was a particular sore spot. Designed by Johnston, it was built for William Elsinger, co-founder of the Golden Rule department store. Elsinger and his business partner and brother-in-law, Jacob Dittenhofer, had decided to build big new houses side by side, and Gilbert was vying for both projects.
"He thought he had secured both," Knoke said. "Then he went out of town." While Gilbert was away, Johnston won the Elsinger commission. "Gilbert was very competitive, and that put the nail in their relationship."
The two houses were completed the same year, 1898. Both were built of Mankato-Kasota stone, but their architectural styles were in stark contrast. Gilbert's design for Dittenhofer was formal and symmetrical, while Johnston's design for Elsinger was "flowy and romantic," said Knoke, with a corner tower and off-center bay window.
"If you look at both houses together, it tells you a lot about their personalities. Gilbert was stoic and serious. ... Johnston was loving and approachable."
The Johnston home also had an unusual feature — a double-sided fireplace with one hearth facing the foyer and the other on the stair landing with built-in bench. "It's something I've never seen in a Johnston house," said Knoke. "It's really spectacular."