My interpretation is:
You want to iterate through your list of families as a single origin
you want to add all the clinics as locations for each iteration
output an OD CM for each family.
It looks like your model should do this (I never use model builder), so perhaps your locations are not valid.
This will require snapping and search distance options to be set.
You should test to see if this works manually through the NA wizard.
Hi David,
Thanks for responding. I have run this successfully with one record manually in NA OD Cost Matrix. However, I am going to try to recreate my manual success with just one record in ModelBuilder and go from there.
Best regards,
Shannon