On that basis his birth year would be about 1810. I'm told (although I haven't been able to check) that the 1841 Scotland Census says he was born in Poland about 1806. The 1850 US Census (which we have) says he was born in Poland about 1812. Since his second wife was born in 1827, he would have had every incentive to be passing himself off as a younger man, I guess. But we may never find an official birth/baptism record, as Poland was partitioned several times in the period 1805-1815, with maps redrawn each time, so records might be scarce. His Scottish marriage was in Dec 1834. If he was born 1812, he would have had to get his medical degree in Berlin, move to Edinburgh and find a wife by the age of 22, which seems unlikely.
I'm hoping that the Perry County people might be able to tell us more about his death, which is also open-ended at this stage.
Geoff