to get the paper copies of anything to do with Uruaguay one has to write to the British Consultate/ Foreign Office or the RO and pay for extracts.
If u find the Foreigh Office in SOuth America and do a "historical research request " and explain that the tyranny of distance means u cant view the records personally maybe some one will look them up in their time off from representative work.
fast fusion
ps pretty well what i gave u in the original post is all u will see unless u get a copy of the microfilms through the LDS centres which a fee for each film will be charged. If the original has anymore details then your luc will be in good stead without annoying the foreigh office.