On 1st August 2015, St. Margaret of Cortona in North Riverdale and St. Gabriel in South Riverdale, were merged into one new parish shepherded by the same pastor. Ten years later, a coat of arms (or logo) has been designed by our pastor, Fr. Seán, to reflect the history and identity of the Riverdale Catholic community that is one united parish.

The shield is designed in a testa di cavallo, "horse head" shape, a distinctive style prevalent in Rome during the Italian Renaissance.

A green (vert) field is divided into an upper and lower portion by horizontal wavy bars (fesses) that are represented in silver (argent) and blue (azure). In the upper portion there is a gold (or) dog and in the lower portion there is a gold (or) trumpet.

The green field symbolizes the Irish heritage of the first Catholics of Riverdale who established St. Margaret's in 1889. The Irish immigrants were people who earned their daily bread by the sweat of their brow who donated the little they had to finance the construction of the new church. Our deepest gratitude must go to those intrepid folks, priests and people alike, for the results they achieved in laying the foundation of this parish.

The horizontal wavy bars in silver and blue symbolize the Hudson River from which the neighborhood Riverdale takes its name. 

The upper portion of the shield symbolizes North Riverdale where the Church of St. Margaret of Cortona is located. The dog at its center is the chief symbol of North Riverdale's patron as this loving animal was used by God to win her conversion.

The lower portion of the shield symbolizes South Riverdale where the Church of St. Gabriel is located. The trumpet at its center is one of the chief symbols of South Riverdale's patron. The divine messenger will sound the trumpet at the end of the age indicating the Lord's return in glory and the resurrection of the dead.