I have had a shaman as well as some psychics uncover some of my past lives too. In previous lives, I have been:
a monk who helped to transcribe copies of the bible. (this may be why I took up calligraphy as a young teen, and became quite good with it. my handwriting and printing have also been considered 'exceptionally neat' by people--which I always attributed to the Catholic education I received--but now wonder if it is a carry over from my 'monk days'.
a Scottish senior shipmate, whose name oddly enough corresponds to a name that is in my husbands ancestry in the same time period/same area. the other 'unusual' thing about this, is that another psychic mentioned to me that my husband and I have been together before in a previous life. not sure if it was this one, but I often wonder?
a young woman folk singer from the late 1940s to 1950's era. this life has come up for me a couple of times, though in todays life, I cannot sing well at all! LOL!
also, it would mean I reincarnated very quickly, because I was born into this life in 1960!
an English girl/woman, whose mother dies young, and she begins to rebel somewhat in her relationship with her father. she begins a relationship with a young man who is a farmer and quite below the status of this girl. however, when push comes to shove with her wealthy father, she choses love and the hard life of a farmers wife. later, regretting her decision.
I cannot at the moment think of any other previous lives, but perhaps there are more. I feel very special to have found out about these--and at least with the Scottish guy, I even have a name, and town and country!
so, yes, in answer to your question--others can find this out for you, in ways already uncovered here in previous posts. psychics, hypnotists and shamans are some of the ways to find out, and well worth the search!