Here is the coat of arms of the Very Rev. Fr. Donald Richardson, BTh, STB, MA, KCHS who is presently the Dean of the Cathedral and Basilican Church of the Immaculate Mother of God, Help of Christians more commonly known as St. Mary’s Cathedral in Sydney, Australia. He has long been armigerous being a heraldry enthusiast himself and the cathedral church has made use of a corporate coat of arms different from that of the Archdiocese for a long time. When he was appointed Dean I told him I would prepare a nice emblazonment with his own arms impaled with the cathedral arms.

Because his personal arms are so similar to the arms of the cathedral I chose to use a line of separation in a color other than black since black wouldn’t provide a clear enough separation. There’s nothing wrong with this. many other artists and authors have advocated it as well. (See: Carl Alexander Vov Volborth’s works, Heraldry: Customs, Rules and Styles and The Art of Heraldry)
In addition, while Fr. Richardson does not possess a Roman Honor his arms are ensigned with the galero used for what is collectively known as “Minor Officials” which would include cathedral deans and/or rectors, rectors of shrine churches or seminaries, basilica rectors, Vicars Forane, Religious Superiors, etc. This galero has two tassels pendant on either side of the shield and they may be shown hanging one below the other or, as here, side by side from a median knot. Father will bear these arms “pro hac vice”, that is to say, during his tenure as Dean of the Cathedral only.
The cross of Jerusalem is included in the achievement to note that he is a Knight Commander in the Equestrian Order of the Holy Sepulchre. The motto means, “Lord, It Is Good For Us to Be Here” (Matt. 17:4)