Here is the design I came up with, based on the idea you referenced. I thought it would be a nice idea to include a cross within the design, as well as a family.
Let me know your thoughts, both in terms of content and color, and we can go from there. Thanks!
And here is another idea, where the cross is at the center of the family--made up of the space made by the husband and wife. I then added a bell on top of the school house to fill the space and to further reflect the idea of a school.
We like the one w/ the cross in the bell tower the best. Could you add the Immaculate Heart like you did the cross in Entry#3 (http://en.wikipedia.org/wiki/File:Sacredheart.svg). Like the overall design it hits all of the salient points. Thanks, looks awesome!