N/A
- Buyer Charlotte H. Colby (trustee), Elizabeth L. Helmholz R. (trustee), Frederic V. Helmholz (trustee), George L. Helmholz (trustee) and Edith L. H. Roth (trustee)
- Seller Charlotte H. Colby (trustee), Elizabeth L. Helmholz R. (trustee), Frederic V. Helmholz (trustee), George L. Helmholz (trustee) and Edith L. H. Roth (trustee)
N/A
- Buyer Elizabeth L. Helmholz Revoc (trustee)
- Seller Elizabeth L. Helmholz (trustee) and Revoc Helmholz (trustee)
N/A
- Buyer A. Carl Helmholz (trustee), Elizabeth L. Helmholz (trustee) and Revoc Helmholz (trustee)
- Seller August C. and Elizabeth L. Helmholz