[1] At the time, Lexington used exclusively oral education, but the students used sign language when instructors were not present.

[3] Her dissertation was titled Recommendations on Educational Placement and Services for Hearing-Impaired Students by Four Types of Administrators.

[3] In that role she was a frequent representative for the American Deaf community, including providing her expertise on the topic of cochlear implants for the show 60 Minutes in 1992.

[2] Rosen became the director of the National Center on Deafness, located on the campus of California State University Northridge, in 2006.

[4] After her retirement in 2014, she continued to serve on multiple boards and wrote the children's book Deaf Culture Fairy Tales in 2017.