Jacob and Jensina Jesperson Eppler

I would like to find info on my great-grandparent,Jacob and Jensina Eppler.Jacob born 31 Jan 1868, died 27 July 1938 in Racine Wisconsin. Jensina born 07 Feb 1873-Denmark,died 07 Oct 1948 in Racine Wisconsin. I did find a record of Jacob coming to the US in 1870 from Denmark to Michigan. No mention of Jensina. Parents to my Grandmother, Florence Annette Eppler born 15 Feb 1896 in either Flint or Pentwater, michigan. She married my Grandpa, Chancy Burton Thompson, 25 Nov,1914. They were the parents of my Dad, Carl Burton Thompson born 29 Sept 1923 in Racine Wisconsin. I do know that Grandma had brothers, at least one sister that died young her name was Margaret. Would like to find the names od the brothers, one was Ted. Thanks so much for any help.