The structure that stands now is a reconstruction of the original after it was razed in the 1930's. The original structure was built in the 1850's. It is said to be the setting of fictional wedding of Romona in the novel of the same name by Helen Hunt Jackson.
We explored here as part of the 2005 www.Ghost-Trackers.org ghost hunter conference and can not find any references anywhere other than the conference that proclaim it to be haunted.
Quaint small old church. It seems to be a part of Old Town San Diego history that is almost forgotten. It is stuck on a side street away from most of the other historic sites and is very unassuming from the street. It would be very easy to pass it and not even know that you had.