I was wondering what their net worth is. According to Forbes it's just $1.5 billion in total (for the whole family). Even though it is said that they were estimated to be worth $6 billion in 1850. I would find it hard to believe that such shrewd business family would lose such an incredible amount of value during the last century and a half. It's even rumoured that around the 1850's that they owned half of the world finance. But I don't know if that is confirmed financially.
In 2005, $6,000,000,000.00 from 1850 is worth:
$149,106,382,978.72 using the Consumer Price Index
$115,649,484,536.08 using the GDP deflator
$1,143,272,727,272.73 using the unskilled wage
$2,294,105,866,183.17 using the nominal GDP per capita
$29,266,640,625,000.00 using the relative share of GDP

