We have 2 objects that Gerlach has been involved with.

If you would like to cite this person in a Wikipedia article please use the following template:

<ref name=CH>{{cite web |url=https://collection.cooperhewitt.org/people/18060117/ |title=Gerlach |author=Cooper Hewitt, Smithsonian Design Museum |accessdate=25 April 2019 |publisher=Smithsonian Institution}}</ref>