What did Mr. Link Deas do for Tom Robinson's wife after Tom died in To Kill a Mockingbird?

In Chapter 12, Scout and Jem visit Calpurnia's church, and Reverend Sykes takes up a second offering for Tom Robinson's wife and children. Scout asks Calpurnia why they are donating their money to Helen Robinson. Calpurnia tells Scout that Helen is having a hard time finding work because her husband was accused of raping Mayella Ewell. The Maycomb community does not want to be associated with anybody who has relations with Tom Robinson. Later on in the novel, Tom Robinson is presumably shot and killed while he is attempting to flee the prison. His old employer, Mr. Link Deas, hires Helen Robinson. Mr. Link Deas has always been supportive of Tom Robinson, and even testified from the audience during the trial that Tom was a trustworthy man with good character. Link Deas not only hires Helen Robinson, but protects her by threatening Bob Ewell.