Davy Crockett was also there busy with the same task.

Before they finished a cannon ball dropped on the floor, bounded against the wall and rebounded several times until it finally lay at rest.
"Somethin' laid a big egg then," said Crockett.

"It's jest as well to keep a stone roof over your head when you're under fire of a few dozen cannon.

Never take foolish risks, Ned, for the sake of showin' off.
That's the advice of an old man." Crockett spoke very earnestly, and Ned remembered his words.

Bonham called to them a few minutes later that the Mexicans seemed to be meditating some movement on the lower wall around the grand plaza.
"Like as not you're right," said Crockett.