The lines between different categories of gender nonconformity were not hard and fast ones. Detailed here is how one might spend time under the umbrella of crossdresser or butch lesbian before making the jump to a gender transition, or perhaps the former might be a final form. Identity was (and continues to be) fluid.

[1] “FTM Newsletter #15,” periodical, 1991, Digital Transgender Archive,  https://www.digitaltransgenderarchive.net/files/n583xv21t.