Is there anybody related to Laura wilder?

yes:

Martha Morse married Lewis Tucker. They had 5 kids:

Lewis Tucker, Lydia Tucker, Thomas Tucker, Mary Tucker, and Charlotte Tucker.

Charlotte Tucker married Henry Quiner. They had 6 kids:

Joseph Quiner, Henry Quiner, Martha Quiner, Eliza Quiner, Thomas Quiner, and Caroline Quiner.

Caroline Quiner married Charles Ingalls. They had 4 kids:

Mary Ingalls, Laura Ingalls, Caroline (Carrie) Ingalls, and Grace Ingalls.

Laura Ingalls married Almanzo Wilder. They had 1 kid:

Rose Wilder.

She married Clare Gillette Lane. They had 1 child, who died shortly after born.