There are 6 Great Lakes 2T-1 aircraft on the U.S. registry that TailWiki has a page for. Every one is built from the public FAA record — year, serial, engine, home base, and registration history — and owners and pilots add photos, trips, and stories on top. The ones listed here were built between 1929 and 1957.
N872K
1957 Great Lakes 2T-1
Snohomish, WA
N624R
1929 Great Lakes 2T-1
Saratoga, CA
N202K
Great Lakes 2T-1
Kettle Falls, WA
N304Y
Great Lakes 2T-1
Rhinebeck, NY
N376H
Great Lakes 2T-1
Hood River, OR
N544K
Great Lakes 2T-1
Zanesville, OH