Found the following hamletworks.org entries referring to line 3219-20

View Commentary Note for 3218-20
3218-9 ent gentlemen | but Gardners, Ditchers, and Grauemakers, they hold 
3219-20 vp | Adams profession. 

View Material Textual Note for 3218-20
3218-9 ent gentlemen | but Gardners, Ditchers, and Grauemakers, they hold 
3219-20 vp | Adams profession.