Monsignor is a honorific title that is requested by a bishop to the pope and given to a priest. It is given for dedicated valuable service or holds a special position of governance by a priest.
In March 2013, Pope Francis suspended the granting of the honorific title of Monsignor except to members of the Holy See's diplomatic service.
A Deacon is a congregational member that wants to be close to the priest and help out during religious ceremonies. He feels he is very pious and gets great satisfaction being a part of the Mass ceremony. They help by leading the congregation in prayers and chants.
Alter Boys are young males typically 8 to 12 years of age who assist the priest during the Mass ceremony. They escort the priest onto the the altar platform and also when he leaves. They ring bells and get the vessels of water and wine that the priest pours into his chalice. Sometimes they carry a cross at a procession in the church.