Do you know Zaharia Stancu's novel,
The Gypsy Tribe? The time period is not exactly what you want but apparently, it was criticised for perpetuating the stereotype, not using the words gypsy or Romani and avoiding what happened to Romani people during WWII, I'm thinking maybe the research(es) made on the novel could lead you somewhere about the subject matter you research through literature. I found something like this:
The Deportation to Transnistria and the Exoticization of the Roma in Zaharia Stancu’s Novel The Gypsy Tribe It also has some related resource links below.
This looks interesting:
Gypsy Identities 1500-2000: From Egipcyans and Moon-men to the Ethnic Romany
I've read that book as a kid 30 years ago and the translation is 'My Gypsy' in my mother language, so obviously it wasn't translated that way later on. I was affected very much and I remember his vivid description of their life, the relationships between men and women, how they lived and so on. traditions and codes. It might be helpful. They are not a group of people to be affected by any taboo, they are themselves treated as a taboo though.