Biography|Olof Kjellstrom — Cement Under Hallwyl House on Hamngatan

Wilhelmina von Hallwyl's town palace is now a museum of her collections.

The ground it stands on was poured while Kjellström ran the Stockholm branch.

Isak Gustaf Clason designed the house for Walther and Wilhelmina von Hallwyl.

Building ran from 1893 to 1898 at Hamngatan 4.

The biographical handbook Svenska män och kvinnor names Hallwylska Palace, with the Royal Theatre and Dramaten, among the cement foundations executed under Kjellström's direction.

The visitor today walks into a donated house-museum, opened after her death.

The contractor is not the story the rooms tell.

The pin is the palace, a public museum since 1938.

He published a short book, Stockholms byggmästare, in 1897, while this job and the opera job were both in the ground.

The book is a directory of Stockholm builders, not a memoir.

It is the paper trail of a man who spent the 1890s putting cement under other people's monuments.

Photo: Frankie Fouganthin, CC BY-SA 3.0, via Wikimedia Commons