Interesting anomaly...

There is an interesting anomaly in the spelling of Rosenthal.  The records at raduraksti.com are written in old German font called Kurrent.  The lower case "s"  looks like a modern day lower case "f" in our cursive writing.  This is all well and good, but if we go to a telephone directory in Latvia, there are no "Rosenthal's".  But there are lots and lots of Rozental's.   I have yet to find a Rozental in the records of 1885.   I have found close to 100 Rosenthal's.  This means that somewhere along the line between 1885 and today, that they all had the spelling of their name changed.    To me, this seems like a thing that would be very difficult to do. Why would a population change the spelling of the last names...

Here are a couple of links to some interesting reading......
On Baltic Germans.. particularly the time frame from 1880 to present...

http://en.wikipedia.org/wiki/Baltic_Germans

 On the history of the Rosenthal name

http://www.surnamedb.com/Surname/Rosenthal