Most of the material in this series is from later in Mr. Lankenau’s life and career, from the mid-1980s through 2000. There is relatively little material related to his work at NAD or his employment at Firestone.

Many of these papers are drawn from Mr. Lankenau’s work related to telephone and relay service in Ohio, including records from various government and phone company commissions and advisory boards he served on. Related material includes correspondence from his work at TDI, mostly concerned with the selling and/or servicing TDDs.

Also included is correspondence and other material from some projects Mr. Lankenau worked on during his latter years, including research assistance for Jack R. Gannon’s history of the World Federation of the Deaf and a project with Dr. Ben Bahan to collect speeches by well-known deaf leaders.

These papers also include many photos from Mr. Lankenau’s life, most of them taken during his college days at Gallaudet. There is also a large collection of plaques and certificates that he was awarded by various deaf groups.