For the state income tax refund, I do not see how that would be a problem. If both state tax refunds are from the same state then you should just be able to enter the total amount received after selecting the state. If the state tax refunds are from different states, once you enter the refund for one state you can enter other state refund for a different state.
Since you are adding both of your incomes, deductions and exemptions on the same tax return, I don't see how entering both state tax refund would be penalizing you on your tax return. If you both itemized your deductions in 2015 then both the state tax refunds would be income on your 2016 tax return. If one or both of you did not itemized on the 2015 return then one of the refunds or both should not be entered as income on the 2016 return.
