I found a hint on pages 132 and 134 of the return. It showed that the value of property placed that year into another family trust, the Ann D. Romney Blind Trust, was, for tax purposes, zero. The Ann Romney trust is not the same trust as the one that holds the Romney sons’ $100 million, but I wondered if the Romneys used the same approach in prior years when it came to valuing property placed into the sons’ trust.