[Salvation]

The 9 Choirs of Angels
In ascending order:

Angels
Archangels
Principalities
Powers
Virtues
Dominations
Thrones
Cherubim
Seraphim

Note:
The Choir of Angels is divided into three triads with specific concerns:

The 1st triad:
Angels, Archangels, and Principalities: concern themselves with the minute ordering of the universe and specific causes, including the welfare of people. Each human being, each church, and each country has a Guardian Angel. The Feast of the Guardian Angels is October 2.

The 2nd triad:
Powers, Virtues and Dominations: known as the “angels of creation” because they concern themselves with the ordering of the universe and a plurality of causes.

The 3rd triad:
Thrones, Cherubim, and Seraphim: concern themselves with contemplating the glory of God. It is the 6-winged Seraphim who sing the Sanctus, “Holy, Holy, Holy Lord God of Hosts” (Isaias 6:3).

[lostboy61]

Know,
Angels
Archangels (Malachim)
Cherubim
Seraphim
Have no ideal who the rest of those folks are.

[COBOL2Java]

I remember hearing a story on the "Catholic Answers" radio program about an incident which occurred at a house run by the Missionaries of Charity sisters in Haiti during the riots after President Jean-Bertrand Aristide fled the country (2004).

A group of Hatians brought over a homeless man who was near death. They took him in and lay him in a bed to care for him.

The man overheard the sisters talking about the riots and how, praise God, their home was not being attacked. He rose up and told them. "Of course nobody's attacking your house! You've got all those big scary-looking men outside, driving the demons away with their giant swords!"

The sisters looked at each other, unsure of what to make of the comment. Was he hallucinating, or in his dying moments, did he actually see the Guardian Angels protecting their home?