Final answer:
The two aspects that make it difficult to know if Keckley made the clothes left from the First Lady's collection are clothes being shared among people and the absence of tags on the clothes.
Step-by-step explanation:
The two aspects that make it difficult to know if Keckley made the clothes left from the First Lady's collection are:
- Clothes were often shared among people, which means that multiple individuals had access to the clothes, making it hard to determine the specific creator.
- They did not use tags on the clothes, so there were no labels or identifying marks to indicate who made them.