The phrase "a son to help" is correct and usable in written English.
It can be used in contexts where you are referring to a son who is providing assistance or support in some way.
Example: "She always wanted a son to help her with the family business as she grew older."
Alternatives: "a son to assist" or "a son for support".
Everyone wants a son to help out in the fields.
If God had given her hardship he'd also given her a son to help.
"It was an honor, a pleasure to be in such a building," Mr. Sabet, 71, said of the trade center, where he worked on the 46th floor for almost 28 years, importing and exporting car parts and later managing real estate -- sometimes with his brother or a son to help.
At least one other N.H.L. agent, the New York-based Jay Grossman, whose clients include the Devils' Ilya Kovalchuk, employs a father and son to help manage his Russian-speaking clients.
"that a teacher in school was finally taking an interest in my son to help him prepare for the testing".
But now he's come hobbling back, like a towering, mulatto prodigal son, to help us with VBS.
10 P.M. (4) LAW & ORDER: CRIMINAL INTENT -- In the season finale, a father uses his teenage son to help him kill judges and their families.
In an emotional interview with Channel 4 News on Thursday, John Letts said he was upset and furious: "I think it's crazy that we can't send a penny to our ill son to help him get out or to help him in any way because we'll be seen as supporting terrorism.
But Samuel persevered, persuading the city to build a $16m £9.5mm) stadium and then calling baseball team owners across the US until he found a team and persuaded his son to help him buy it.
Once he finished treatment, they decided to write a book together as mother and son to help other families dealing with addiction.
In the meantime, as four more Southern states seceded, James Bayard encouraged his son to help organize an independent militia unit, the Delaware Guard; Thomas Bayard was commissioned as its First Lieutenant.
