Final answer:
When leaving for Texas, Anglo Americans wrote 'GTT' or 'Gone to Texas' across their door to indicate they had moved there for new opportunities and land.
Step-by-step explanation:
When Anglo Americans were leaving for Texas, they wrote the phrase 'GTT' or 'Gone to Texas' across their door. This phrase was a common way to indicate that they had moved to Texas in search of new opportunities and land.
Learn more about Anglo Americans leaving for Texas