Route 19 entered Marilla on what is now Clinton Street and followed Two Rod, Liberia, and Four Rod Roads south to Wales Center, where it turned east onto Big Tree Road (now US 20A).
Route 19 began its journey in Marilla along what is currently known as Clinton Street, then proceeded down Two Rod, Liberia, and Four Rod Roads before turning southeast at Wales Center onto Big Tree Road (which is now US 20A).