Always good to remember ;)
Browsing through some conductors’ biographies... It looks like Bernstein, Chelibidache, Ferrara and other prominent conductors, even from our current days, have had a long list of “students”, that continuously “name dropping” their teacher’s names on every occasion.
The teacher of your teacher doesn’t say or imply anything, specially if a teacher present himself as an established artist. Period.
Not like the others