Rutherford began the Millions campaign in 1918. New light suggests that he was obviously talking about babies who were born that year and now, in 2014 they would only be 96 years old.
I was looking through a Census Bureau report on people aged 90+ in the United States 2006-2008, with projections to the year 2050. According to the chart provided there are about 2 million people just in the United States that are over 90 years old. We could conservatively cut that number in half to reach the 96 year-olds and then add in the rest of the world's figures.
By God, Rutherford really DID know what he was talking about. Since this old system couldn't possibly last another year, millions then living in 1918 will never die - just like old Joe prophesied!