However, there were a couple of elements earlier in the table where there were also no stable isotopes: technetium (#43) and promethium (#61).
A website is dedicated to my beloved wife Peggy Eglinn Winfree (1929-2022). She passed away about 25 years after my life partner Charlie Williams (1943-1997). This is perhaps one of the largest personally owned music database of under appreciated musical artists.