Note 1061 — ARTICLE I (continued 5)

Perkins v. Elg, 307 U.S. 325, 329, 334 (1939). Naturalization has a retroactive effect and removes all liability to forfeiture of land held while an alien (Osterman v. Baldwin, 6 Wall. 116, 122 (1867)); the subsequent naturalization of an alien who takes land by grant or by location on public land relates back and obviates every consequence of his alien disability (Manuel v. Wulff, 152 U.S. 505, 511 (1894); Doe ex dem. Governeur's Heirs v. Robertson, 11 Wheat. 332, 350 (1826)). A certificate of naturalization, while conclusive as a judgment of citizenship, cannot be introduced in a distinct proceeding as evidence of residence, age or good character of the person naturalized (Mutual Ben. L. Ins. Co. v. Tisdale, 91 U.S. 238 (1876)).