I bring you to the Unitarian Universalist Congregation of the Swanannoa Valley. UUCSV as it is known by those who attend.
There is now a sweet memorial garden in a quiet place under trees.
The memorial wall has names of people I've known (all but one of them). It doesn't contain names of those who don't have friends/family to post their names. I see that as a limitation that our diverse geography has created, families live elsewhere, so don't put a name where their loved ones had lived.