You have made a lot of very useful post on this board and I value your experience and insights greatly. However, I would not use you as my tax man.
A person with a wife and kid who makes $250K per year would have a lot of deductions which would bring his taxable income significantly below $250K. But for the sake of example lets say his deductions come to $30K so his taxable income is $220K. The following are the tax rates and brackets.
A decent tax accountant could get that down even further. If this person had his own business and his total income was $250K there would be even more deduction and ways to shelter his income so that his taxes would be closer to $25K. I'm not an accountant, but I was a small business owner and job creator and the small business owner has significant tax benefits over the average employee. Just saying.