Hello again Dayna;
I finally had a chance to drop into St. James Cemetery today, apologies for the delay. I spoke to the groundskeeper about an index; he said that detailed records were kept and can be accessed by contacting the following person:
There may be a nominal fee for a search. She can provide you with a grid of where the headstone is. Since I was there anyways I took an hour to look around, with specific attention to the "baby" section. Unfortunately I didn't come with anything. Some of the markers are in fairly poor condition and hard to read, others have been vandalized as well. I was also looking for another name while there so this was also useful for me as well.
I am still willing to get a photo of a headstone if you contact the person above and get a precise location. Unfortunately I think simply walking around the cemetery will only provide a small chance of success. Let me know.