David Diamond has written at least 11 symphonies; Persichetti, I believe, did stop at his 9th, "Janiculum." (I might be mistaken about this.) Whether Mennin's withdrawing his first two symphonies affects the case at all is something I wonder, but I suppose not. (And I thought Spohr _was_ supposed to have written a 10th, now lost.) You both left out Roger Sessions. ;) Harald Saeverud wrote at least 9 symphonies; I don't know of a 10th. Eric Schissel