You have retired, so you have all the time in the world to work on your family tree. Your children, grandchildren and great-grandchildren will be so grateful you made time to obtain your family history.
It is so sad when letters from wars, old family photos, war medals and even old diaries just get lost and forgotten - then all that family history is gone.
Some families are extremely good at preserving family history. I know people who have transcribed the war letters their grandfather’s sent home, as they knew the ink would fade over the years and that information would be lost.
I have had a knitted silk dress that belonged to my mother framed, along with four photos of her wearing it. I knew the moths would make a beeline for it if it was not put under glass and preserved.
Genealogy is the study of families, family history, and the tracing of their lineages. A lot of us can go four or five generations back, but going further may take some work, especially if there are no records to help.