Lichtblau, grossman, gosc, kosawe, voiges

Dear list - Please excuse the English, I am looking for information about my ancestors. Here's what I have:

Looking for information for these ancestors who at one time lived in Breslau, Germany (now Wroclaw, Poland). All spellings are approximate.

Johanna GROSHNANN or GROSSMAN (b. 3.5.1824 d. 2.2.1893) married
Thomas LICHTBLAU (b. 7.1.1820 d. 13.4.1885).

  Mathilde married VOIGES (Warsaw, Glatz)
    Albert (Breslau)

  Agnes married HOPSIA or HAPSIA (U.S.)

  Hedwig married Simon Frank KROL (U.S.)

  Johanna married GOSC (Breslau),
    Mary Magdelena
    Gehard (16.7.1911 – Sep 1945 died in hospital due to war)
    Hedwig Ida (married KORSAWE or KORSAIN) moved to US

  Paul married ? (Germany)

  Anna married VON FLORIANOWITCH (Poland)

  Joseph - priest?

  Albert - priest?

Can anyone suggest what Johanna's surname would be? The family member said Groshnann, but I can't find that anywhere. Perhaps Grossmann?

Thank you for any help you can give! My great-grandmother was the daughter of Hedwig and Simon Krol.

Cathy Gruber
Oakton, Virginia, US