In Wyman v. Wallace (1905), the U.S Supreme Court dealt with a dispute over land ownership in the District of Columbia. The case arose when William Wyman sued James Wallace, claiming that he had wrongfully taken possession of a piece of property that rightfully belonged to him. The lower court ruled in favor of Wyman, but on appeal, the Supreme Court reversed this decision. The key issue was whether or not an 1871 act by Congress retroactively validated certain defective acknowledgments made prior to its passage. These acknowledgments were related to deeds transferring property rights and their validity could impact who held rightful title to disputed lands. The Supreme Court concluded that Congress did intend for the 1871 act to apply retrospectively and thus validate previously defective acknowledgements. Therefore, it found that James Wallace held valid title due his predecessor's deed being acknowledged properly under this law despite any defects it may have originally had before its enactment.

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