It is Prunus x cistena. It came with the property. I've only been gardening here for 4 years now but brought most of my plants from my other property. This poor tree has begun to decline because of insect damage.
Also Fagus sylvatica 'Pendula' it also has great fall color. Both get large over time. But let your kids worry about the size someday. Or Cercis canadensis 'Forest Pansy', one of my favorites because it is perfect for a small garden, or the many Acer palmatum disectum selections with purple foliage. Good luck searching.