The world’s largest private collection of artifacts and documents related to the siege of the Alamo and the Texas Revolution of 1836 is coming home: a gift to the state of Texas from the collector. The donor is none other than British singer-songwriter, Phil Collins. The world’s largest private collection of artifacts and documents related to the siege of the Alamo and the Texas Revolution of 1836 is coming home: a gift to the state of Texas from the collector. The donor is none other than British singer-songwriter, Phil Collins.