I don't remember an application ever asking for sexual orientation, but the last time I saw a job application was 1995.Did they ever ask for someone's sexual orientation at one time? It makes me wonder if they allow openly gay, bisexual, and Lesbian men women to teach in the classrooms.....?
In 1971, we had a mid-twenties openly gay theatre professor at college, though he said when he interviewed for the position it was the first time he'd ever worn a suit. I don't know if that means he was trying to hide it or not, but once he had the job he dropped any pretense. After his arrival, about 5 students in the department from the previous semester came out of the closet. To put the nature of the community in perspective, it was in the same town that gave the world a baby named Rush Limbaugh.
It's possible that religious schools might have asked for orientation, there are certainly pressures of conformity in their handbooks.
Kind of makes one wonder.... "Professor! you touch me in ways I never been touched before....."