Thanks.
We are thinking (whether we) should tell
we be telling the children:
Let us find Mary(X) or Let us find the Marys

.
Our flow is:
1. Tell the children a story of Mary
.(In the context, the children are told a story of Mary (first mention). So, they have a prior knowedge of Mary in mind.)
2. "Let us find Mary in the picture"
or "Let us find the Marys in the picture."
(As having been told previously, the children are expected to have known who Marys are -The noun Mary is defined by previous mention, so the definite article should be used.)
3. ask a child to come out. "(Child's name), can you please find one Mary?" (asking the child to point out one of the Marys in the picture)
4. (at the end of the activity) "Great, we found all the Marys."
If in this context, do u recommend we use in #2
Let us find Mary in the picture (X)
or
Let us find the Marys in the picture
or
Let us find all the Marys in the picture?
Thanks very much in advance and your advice is much appreciated.