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I don't know if you found the program for your family tree or if you inferred that from the filename, but you could try this one: Sierra Generations Family Tree

I don't know if you found the program for your family tree or if you inferred that from the filename, but you could try this one: Sierra Generations Family Tree, which uses the CHT format. Do you recall using that piece of software?

twooclock 5y ago
No. Is it from 1990? I remember more of like some charting or diagram software.