Peter Schiff's Dec. 7 op-ed, "The Fantasy of a 91% Top Income Tax Rate," included some faulty data due to a misreading of IRS tax tables.

In 1958, an 81% marginal tax rate applied to income of $140,000 and the 91% rate at $400,000 for married couples, which would correspond to income levels about eight times higher today. The article misstated the income thresholds and the comparison to income today.

In...