That's a reasonable source. My list was what I could recall from the Baltimore Catechism. I went to find a link, and it looks like I missed a few.
As something issued by all bishops in the USA, it did at one time have official status in dioceses within the United States.
But it's not a place to cite 'official' Catholic teaching, because it's not a universal Church document the way a church council, a vatican statement, or the writings of one of the church doctors would be.
It's best to cite a source that the Baltimore Catechism would have used as the authoritative source.