I didnt really know where to post this question.

Since I know there is always active people on this forum I figured I would try here first.

I have a family tree done in the mid 90's by an unknown researcher.

What I need help with is on some of the people they have added in abbreviations that I dont know the meaning of maybe someone here can help me.

A couple of examples.
Barbara (H-R-L)
Anne Marie (H-R-D)
Mary (H-R-G)
Joyce (H-R-R)
Marcia (A-E-J)
Tracy (A-J-J)
I realize these are all wives with no maiden name. However I dont see a pattern to what they mean. Also it seems like a very complicated way of just filling in the blank.

I dont have the original papers with me. But I thought that I had also seen these notations on people that had full names as well.

Is this a common set of abbreviations that I am just unaware of or will I never know what they mean unless I find the person who did the original work?