1930 Crew of Vessels Census
Owner/Operator: The Diamond O. Navigation Co.
248 Hawthorne Ave, Portland, Oregon
Steamer Diamond O, Portland Oregon
March 29, 1930
H.H. O'Reilly, Enumerator
| NAME | Sex | Race | Age | Birth | Trade | Wife or Next of Kin | Notes |
| Janders, William J. | M | W | 22 | Wisconsin | Deckhand | Portland Ore. | |
| Rossi, George | M | W | 49 | Italy | Deckhand | Alien | |
| Steinert, Oscar | M | W | 36 | Latvia | Fireman | Latvia | Declaration of Intent |
| Merseriau, Alfrred | M | W | 30 | New York | Deckhand | Higginsville NY (or NJ) | |
| Waki, William E. | M | W | 30 | Wisconsin | Mate | Branwood, Wis. | |
| Kelly, John | M | W | 32 | Ilinois | Watchman | ||
| Hansen, Thomas P. | M | W | 44 | Iowa | Cook | Portland Ore. | Married |
| Hansen, Glenye B. | F | W | 44 | Iowa | Cook | Portland Ore. | Married |
1930 Crew of Vessels Census
Owner/Operator: Willamette C. Columbia River Towing Co.
175 1/2 E. Water Street, Portland, Oregon
George W. Simons, Portland Oregon
April 2, 1930
R.E. Hine, Enumerator
| NAME | Sex | Race | Age | Birth | Trade | Wife or Next of Kin | Notes |
| Stanenko, Desmond E. | M | W | 23 | Oregon | Deckhand | Divorced | |
| Hensley, Alfred C. | M | W | 21 | Oregon | Deckhand |
1930 Crew of Vessels Census
Owner/Operator: Willamette C. Columbia River Towing Co.
175 1/2 E. Water Street, Portland, Oregon
F.B. Jones, Portland Oregon
April 2, 1930
R.E. Hine, Enumerator
| NAME | Sex | Race | Age | Birth | Trade | Wife or Next of Kin | Notes |
| Powell, James W. | M | W | 23 | Oregon | Mate | ||
| Davis, Earl J. | M | W | 44 | California | Cook | ||
| White, George | M | W | 29 | Utah | Deckhand | Married, WW vet | |
| Powell, Edwards | M | W | 25 | Oregon | Deckhand | ||
| Kingsley, Richard H. | M | W | 44 | Texas | Fireman | WW vet | |
| Hunter, Frederick | M | W | 23 | Oregon | Deckhand | ||
| Capice, Elmer J. | M | W | 33 | Washington | Deckhand | WW vet | |
| Jones, Warren | M | W | 48 | Illinois | Deckhand | ||
| Loomis, Alfred B. | M | W | 50 | Oregon | Pilot |
1930 Crew of Vessels Census
Owner/Operator: States Steamship Company
Portland, Oregon
Texas, Portland Oregon
February 26, 1930
H.M. Montgomery, Enumerator
| NAME | Sex | Race | Age | Birth | Trade | Wife or Next of Kin | Notes |
| Carlson, Otto | M | W | 50 | Finland | Seaman | John Lain, San Francisco | Declaration of Intent |
| Larson, Olaf. C. | M | W | 26 | Germany | Seaman | Mrs. E. Hundershagen, Portland, Ore. | |
| Kupras, John | M | W | 32 | Poland | Seaman | Thos. Kupras, Flint, Mich. | Naturalized |
| Addy, Walter E. | M | W | 24 | Minnesota | Seaman | Mrs. W.J. Burns, New York | |
| Gassett, Charles | M | W | 23 | North Carolina | Seaman | W.F. Rubes, Goldsboro, Tenn. | |
| LongKino, Antonio | M | Fil | 27 | Philippines Is. | Seaman | Consuelo LongKino, Valderama Antique, P.I. | Married, Alien(Crossed out?) |
| Fowke, Roy A. | M | W | 30 | Ohio | Seaman | Seamens Union, San Francisco | |
| Filppi, John | M | W | 42 | Finland | Seaman | Seamens Union, San Francisco | Naturalized |
| Caisip, Bernardo M. | M | Fil | 25 | Philippines Is. | Seaman | PicCaisip, BarasRisal, P.I. | Alien(Crossed out?) |
| Modsen, Cole | M | W | 22 | Nebraska | Seaman | Mrs. P. Madsen, Portland, Or. | |
| Bender, Lawrence | M | W | 19 | North Dakota | Cadet | A.E. Bender, Portland, Or. | |
| Pedersen, Paul | M | W | 35 | Denmark | Deck Engineer | Thos. Pedersen, San Francisco | Naturalized |
| Stewart, Fred | M | W | 26 | Washington | Oiler | Geo. Stewart, Portland, Ore. | |
| Staab, George | M | W | 41 | Ohio | Oiler | Dan Staab, Reading, Ohio | |
| Doggett, Elmer H. | M | W | 36 | Massachusetts | Oiler | Mrs. Bessie Brook, Boston, Mass. | |
| Fordyng, Ludvik | M | W | 35 | Poland | Fireman | Walenty Ferdina, Krakalo, Poland | Declaration of Intent |
| Devine, Harry | M | W | 37 | Massachusetts | Fireman | Mrs. Mary Divine, Everett, Mass. | Married |
| Lauador, Olipeano | M | Fil | 35 | Philippines Is. | Fireman | Nucaria Lauador, Cebu, P.I. | Married, Alien(Crossed out?) |
| Rahlvis, Clyde | M | W | 23 | Iowa | Wiper | Mrs. E.B. Rahlves, Portland, Ore. | |
| Javines, Esidro | M | Fil | 23 | Philippines Is. | Wiper | Eusivic Javines, Lupte, Carigars, P.I. | Alien(Crossed out?) |
| Ulshoeffer, Franklin | M | W | 17 | Oregon | Cadet | Mrs. M.A. Carlisle, Portland, Or. | |
| Lundquist, Melvin W. | M | W | 24 | Wyoming | Radio | Mrs. Robt. Lundquist, Portland, Or. |
1930 Crew of Vessels Census
Owner/Operator: States Steamship Company
810 Porter Bldg., Portland, Oregon
S.S. Iowa, Portland Oregon
June 7, 1930
George Eggers, Operating Manager, Enumerator
| NAME | Sex | Race | Age | Birth | Trade | Wife or Next of Kin | Notes |
| Poorman, C. Edward | M | W | 39 | USA | Carpenter | Chas. Poorman, Auburn, Wash. | |
| Johannsen, Johan A. | M | W | 35 | Sweden | Seaman | Seaman's Union, Portland, Oregon | Alien |
| Aagaard, John M | M | W | 30 | Denmark | Seaman | Seaman's Union, Portland, Oregon | Alien |
| Ritchey, Harry C. | M | W | 43 | USA | Seaman | E W Lowe, 700 (800?) Holgate Ave, Defiance, Ohio |