It has been a while since the Urban Roamer last visited the historic district of Santa Ana in Manila. At that time, the series was written based on the Urban Roamer’s scant knowledge of district as gathered from third party sources. Over time, I have gotten to learn some new things about this district, most especially recently thanks to my interaction with people who know a great deal about the district itself, not to mention the opportunity to explore more in depth at least parts of it thanks to my work as a volunteer for the Cultural Heritage Mapping Project of Wikimedia Philippines supported by the National Historical Commission of the Philippines. That…