Johann Holzer and Marina Egorova took a walk from their hotel last Friday in north St. Joseph to grab dinner at Olive Garden.
They never made it to the restaurant because Johann suffered a massive heart attack along the way.
Marina could not find her cell phone in the panic, but a woman driving by stopped to ask if she should call 911 for them.
Then, two men also stopped and performed CPR until paramedics arrived.
The couple wants to extend their gratitude to those who stopped to help on Friday.
Anyone with information to help locate the good Samaritans is asked to contact Tracey Clark at Heartland Health. Her number is 816-271-7523.