This is another one of those cards where the back is of more interest than the front. I wouldn't worry about James Shockley's dog; there's obviously some code language going on here. What could it mean though? Here's the message, sent to Dottie Hilker, in case you can't read it on the card:
Just to let you know that James Shockley's dog got hit.
Drusilla + Anastasia
If you think you know what this means, please let me know. Here's the not-so-exciting front of the card: