I agree with the "theist - athiest" division and believe that both terms have no values invested in them until we take another step and express our values.
In the 1940's when I was pondering these things I decided that I was a homo-sapien chauvanist. I don't think that the term secular humanism was in use.
These days it is more often referred to as "Democratic Secular Humanism" to distinguish it from less desirable forms that the world has seen.

Edmund