
As the Mallinckrodt family’s fortunes grew, so did their houses. Emil’s farm house wasn’t too shabby, and seems to have survived into the Twentieth Century. A Greek Revival center hall house, it acquired a Queen Anne style front porch in the late Nineteenth Century. It was demolished at some point, I estimate, in the early to mid Twentieth Century and the site is now a vacant lot right by an exit ramp from Interstate 70. It’s hard to imagine that the area around the house was once rural farmland. There was surely no professional architect but rather a master mason who built the house from pattern books or from a standard design.

The Mallinckrodt Chemical Works’s revenues exploded, of course, and it afforded Edward Sr. the ability to construct a mansion in the tony Vandeventer Place, the exclusive private street just off North Grand Boulevard in Midtown.

The new mansion cost $15,000 to build in 1881 and took up two and a half lots at 3648 Vandeventer Place. The family owned it for many years into the Twentieth Century, long after the private street had lost its luster.

It passed into the hands of Jennie Mallinckrodt, and there was even a pool installed in 1922. Of course, it was annihilated when the eastern half of Vandeventer Place was demolished for the Veterans’ Hospital.

Like Adolphus Busch, the Mallinckrodts also owned a house back in Germany.

Edward Mallinckrodt Jr. followed the trends of the wealthy in St. Louis and built his mansion in Westmoreland Place, just north of Forest Park. Initially taking up all of Lot 27 and half of Lot 26 of the Forest Park Addition, the current owners also have acquired additional lots on Westmoreland Lindell (they are also beneficiaries of one of the few “private” traffic lights I looked at a while back). The house, in the French Renaissance Revival style, was design by James Jamieson and built by the Häseler Bricklaying and Construction Co,, offices at 621 Wainright Building. Albert Häseler was president of the firm. The permit was filed for the house in 1913 for $59,400, and the garage for $6,000.

James Jamieson is a critical architect in the history of the St. Louis built environment. Born in Falkirk, Scotland and originally working out of the firm of Cope and Stewardson of Philadelphia, he settled in St. Louis after working in that firm’s branch in the Gateway City for many years. Among his many commissions was Washington University’s Hilltop Campus, much of the University of Missouri, Columbia, as well as numerous houses around St. Louis.

Jamieson’s obituary in the New York Times from 1941 revealed that he also designed campus buildings at the University of Pennsylvania, Brynn Mawr, and Princeton. Not a bad pedigree.

The family has a prominent mausoleum in Bellefontaine Cemetery.
And as of Nov. 2025, it looks like the Mallinckrodt brand is dead, with a spinoff and also the introduction of Keenova. https://ir.mallinckrodt.com/news-releases/news-release-details/mallinckrodt-completes-spin-par-health-introduces-keenova
Any images of their Adirondack camp / estate ?
Pretty sure the Westmoreland Place home was the family home of a friend of mine from Rosati-Kain High School! If so, I was in the kitchen back in the day!