There has been a change in the Latin (TLM) Mass schedule in Rochester. There is still a 4PM Mass on the first Sunday of each month but it is being held at St. Bridget's church in Simpson, an unincorporated community which is just south of Rochester, east of the airport a couple of miles on County Road 16. It is no longer held at St. John's in Rochester.
There is also now a 12:30 Mass on the THIRD Sunday of each month, also at St. Bridget's.
Check out the Rochester Latin Mass Society's website with beautiful photos of St. Bridget's and good links for the Extraordinary Form Latin Mass