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Stone description: gray
| Wall Number | Country Sort descending | State | Classification | Source |
|---|---|---|---|---|
| 1R14 | Italy | Marble | Carrara | |
| 11RA33 | Italy | Marble | Serravezza | |
| 12LA27 | Italy | Marble | Serravezza | |
| 4L1 | Italy | Marble | Carrara | |
| 4R1 | Italy | Marble | Carrara | |
| 12RA26 | Italy | Marble | Serravezza | |
| 9RA32 | Italy | Sandstone | Leghorn | |
| 11LA29 | Italy | Marble | Serravezza | |
| 11LB25 | Italy | Sandstone | Leghorn | |
| 1L14 | Italy | Marble | Carrara | |
| 10RB35 | Mexico | Pumice | San Juan, Pueblo State | |
| 8RA2 | Portugal | Limestone | Freguesias, Coimbra | |
| 8LB1 | Portugal | Marble | Alvrite, Coimbra | |
| 9LA15 | Siam (Thailand) | Marble | ? | |
| 11LB37 | United States | Virginia | Granite | Manchester |
| 5RA13 | United States | Ohio | Sandstone | Marietta |
| 6RB2 | United States | Pennsylvania | Sandstone | Franklin |
| S2-93 | United States | Vermont | Granite | Derby |
| 10RA10 | United States | New York | Limestone | Prescott |
| 13LB38 | United States | New York | Marble | Port Henry |
| 5LA24 | United States | Maine | Granite | S. Brookville |
| 6LA28 | United States | New York | Sandstone | Olean |
| 7RA26 | United States | New York | Sandstone | Camden |
| S1-2 | United States | Ohio | Sandstone | McDermott |
| 11LB39 | United States | Virginia | Granite | Manchester |
| 24WE | United States | Indiana | Limestone | Bedford |
| 5RA16 | United States | Ohio | Sandstone | Leesville |
| 6RB27 | United States | Maine | Granite | Franklin |
| 8RA38 | United States | Arizona | Tuff | Kirkland |
| S3-1 | United States | Indiana | Limestone | Bedford |
| 10RA13 | United States | Ohio | Dolomite | White House |
| 13LB42 | United States | Illinois | Limestone | Iuka |
| 5LA25 | United States | Maine | Granite | Frankfort |
| 6La30 | United States | Kentucky | Sandstone | Livingstone |
| 7RA29 | United States | California | Sandstone | Angel Island |
| S1-20 | United States | Unknown | Granite | Unknown |
| 11LB41 | United States | Washington | Sandstone | Bellingham |
| 25WE | United States | Ohio | Sandstone | Amherst |
| 5RA20 | United States | Massachusetts | Granite | Wyoma |
| 6RB3 | United States | Pennsylvania | Sandstone | Kiasola Station Beaver Co. |
| 8RA39 | United States | West Virginia | Sandstone | Charleston |
| S3-10 | United States | Arkansas | Limestone | Batesville |
| 10RA15 | United States | Ohio | Dolomite | White House |
| 13LB9 | United States | Ohio | Dolomite | Sandusky |
| 5LA29 | United States | California | Granite | Rocklin |
| 6LA37 | United States | Connecticut | Granite | Groton |
| 7RA32 | United States | Minnesota | Sandstone | Dresback |
| S1-23 | United States | Massachusetts | Granite | Quincy |
| 11LB42 | United States | North Carolina | Gneiss | Hickory |
| 26EE | United States | Arkansas | Limestone | Batesville |
| 5RA22 | United States | North Carolina | Granite | Poison Springs |
| 6RB31 | United States | Texas | Granite | Nr. Llano |
| 8RA42 | United States | Oregon | Basalt | Clackamas Station Clackamas Co |
| S3-11 | United States | Ohio | Sandstone | McDermott |
| 10RA31 | United States | Kansas | Sandstone | Parsons |
| 13RA13 | United States | Iowa | Dolomite | Humbolt |
| 5LA3 | United States | Ohio | Sandstone | Peninsula |
| 6LA5 | United States | Pennsylvania | Sandstone | Scranton |
| 7RA36 | United States | Missouri | Granite | Knob Lick |
| S1-36 | United States | Ohio | Sandstone | Amherst |
| 28EE | United States | Ohio | Sandstone | McDermott |
| 5RA25 | United States | North Carolina | Granite | Mecklenburg Co. |
| 6rb32 | United States | Colorado | Granite | Georgetown |
| 8RA45 | United States | Washington | Sandstone | Bellingham |
| S3-12 | United States | Missouri | Limestone | Carthage |
| 10RA34 | United States | Virginia | Granite | Tuckahoe Dist. |
| 13RA21 | United States | Iowa | Limestone | Bentonsport |
| 5LA30 | United States | Texas | Granite | Nr. Llano |
| 6LB16 | United States | Pennsylvania | Diabase | Gettysburg |
| 7RA40 | United States | Montana | Diorite | Helena |
| S1-37 | United States | Ohio | Sandstone | Amherst |
| 11Lq | United States | Tennessee | Marble | Knoxville |
| 28WE | United States | Indiana | Limestone | Bedford |
| 5RA26 | United States | Maine | Granite | Biddeford |
| 6RB35 | United States | Connecticut | Gneiss | Ansonia |
| 8RA46 | United States | Washington | Sandstone | Bellingham |
| S3-2 | United States | Indiana | Limestone | Bedford |
| 10RA36 | United States | New Hampshire | Granite | Fitzwilliams |
| 13RA22 | United States | Missouri | Sandstone | Miami Station Carroll Co. |
| 5LA39 | United States | South Carolina | Granite | Aiken Co. |
| 6LB17 | United States | Pennsylvania | Granite | Allentown |
| 7RA41 | United States | New Hampshire | Granite | Sunapee |
| S1-8 | United States | Indiana | Limestone | Bedford |
| 11RA10 | United States | Ohio | Dolomite | Milton Twp. Woods Co. |
| 29WE | United States | Indiana | Limestone | Bloomington |
| 5RA27 | United States | Maine | Granite | Biddeford |
| 6RB36 | United States | Connecticut | Granite | Thomaston |
| 8RB23 | United States | North Carolina | Granite | Greensborough |
| S3-4 | United States | Alabama | Marble | Rockwood |
| 10RA38 | United States | New Hampshire | Granite | Fitzwilliams |
| 13RB35 | United States | New York | Limestone | Williamsville |
| 5LA4 | United States | Ohio | Sandstone | Norwalk |
| 6LB2 | United States | Pennsylvania | Sandstone | Mauch Chunk |
| 7RB16 | United States | Pennsylvania | Soapstone | Montgomery Co. |
| S1-9 | United States | Indiana | Limestone | Bedford |
| 7RB17 | United States | Pennsylvania | Gneiss | Reading |
| S2-125 | United States | Kansas | Limestone | Cottonwood |
| 11RA28 | United States | Tennessee | Limestone | Nashville |
| 2L17 | United States | Missouri | Limestone | Phenix |
| 5RA3 | United States | Ohio | Sandstone | Bellaire |