Grossmann family is accorsing to tradition of levitic origin and as such might well descend from Ger-Ra-Sha-Ma son of Am-Mes-Sa-Ha alias Man-Sha -ha ,founder and name-giver of shaman religion,ancestor of some germán people of his language.
He had at least twos sons namely Eshsha-Ba-ya'a-Le or Eshsha-ya-Ba-'a-Le who seems to be identical with Abi-Eshshukh king of Babylón after Shamsu-I-Luna son of Aammurapi from about 1626 b.c.. The second one called Awa-Hayan-Nat-Te-Ne in the Byble and Ot'hin by his german issue moved at that time to the North to the newly occupied territory of the E-Den-Na tribe mainly including Canada of today,and beacme the priest of the whole nation there in his successors who seemingly evolved densk language in centuries stil related to that of the other descendants of Er-Ge-Mar-An-Ma.
His name might be preserved in ethnonyms like tsez-othinne,atcha-othinne,esbata-othinne and others .
Jews and christians read Gershom,Mosheh,Shebu'el,Yehonatan,Dan,Aamram.
See Hamburger,Calgary,Messinger,Mohoray,Gelbermann,Denkstein,German,Schwed,Tinódy,Fölsinger,Ehrentreu,Förster,Vajda,Szász,Demsky,Wodianer,Vodnansky,Bajor !