1845-1849, famine and plague left Ireland with less than tens of thousands of people?

1845-1849, there were many deaths in Ireland. The cemetery was crowded and the bodies were buried by the roadside. The grave digger was so hungry that he had to bury the body a foot deep. Groups of hungry dogs barked in the distance, and when the cemetery was empty, they took out the coffin and ate the body. The famine and plague that lasted for four years claimed more than 1 10,000 Irish lives, and more than 1 10,000 people were forced to emigrate, mainly to the United States. The population of Ireland has decreased by about 1/4, leaving less than 6 million.