Extract from United States Immigration Act of February 20, 1907: 
‘Sec. 1 3. All Alliens arriving by water at the ports of the United States shall be listed in 
convenient groups, and no one list or manifest shall contain more than thirty names. To each 
alien or head of a family shall be given a ticket on which shall be written his name, a number 
or letter designating the list in which his name, and so forth, is contained, and his number on 
said list, for convenience of identification on arrival." 
