If she should predecease the testator, then everything is left to his child or children.
"The Lion's Share"
E. Arnold Bennett
If we are blessed with any children, and I should predecease him, my future husband will make such arrangements for their welfare as he considers wise and just.
"Love Eternal"
H. Rider Haggard
While he agreed to give, to his prospective bride Mrs. Rachel Constable, the plantation upon which he then lived, a provision was inserted that should she predecease him without heirs, the contract was void.
"Domestic Life in Virginia in the Seventeenth Century Jamestown 350th Anniversary Historical Booklet Number 17"
Annie Lash Jester