AlbanyTony and Bonnie Mariano have spent two decades lovingly restoring an 1895 Lancaster Street rowhouse built by Hester Slingerland Winne, a member of the Slingerland family, one of the earliest Dutch settlers.On Friday, the couple hosted a special lunch guest, 90-year-old Martha Slingerland, archivist of the noted family's 10 generations in the Capital Region.