What these people have in common is that they were all concerned with religious liberty. George Calvert was an Englishman who arrived to what is now modern day Canada (Newfoundland) and the United States (Maryland) in hopes of establishing a colony where Catholicism would prosper as it could not in his native land. Roger Williams was a Protestant theologian who was a proponent of religious liberty and of the separation of church and state. William Penn was also a proponent of religious freedom. Anne Hutchinson viewed Puritanism (a branch of Protestantism) in a more open view than her conservative counterparts.
Propaganda, they inspired more people to join the fight on America's side.
Convict lease system, which was popular in the South essentially leased convicts to large agricultural operations. This system led to many forms of abuse of workers who had lost their rights as a result of being convicted of a felony, whether guilty or not. This was particularly true for African Americans in the late-nineteenth century. One of the most notorious of these operations was Parchman Farm in Mississippi, which literally utilized thousands of black convicts for various unpaid tasks.
The legislature must vote to put the amendment on the ballot.