Thanks for your reply.
I am unaware that you could post names directly into the Calendar.
In my case they are in the database. The first 70 people as well as the new 10 people were selected this way:
1.Open calendar and select Individuals to include.
2. A list pops up called: Filter Individuals.
3. Select individuals from left side and click include> and then click ok.
I have been doing this for 18 years