| # | Title | Name | Town/City | S/C/P | Region | Date |
|---|---|---|---|---|---|---|
| 501 | N/G | Keija Lee | Portland | Oregon | USA | May 24, 2018 |
| 502 | 1997 | Simone Bogar | Newberg | OR | N/G | May 24, 2018 |
| 503 | Mr | Martin Sobelman | West linn | Oregon | USA | May 24, 2018 |
| 504 | Ponderosa Middle School / | Drew Langley | Klamath Falls | Oregon | USA | May 24, 2018 |
| 505 | N/G | Mari Schay | Portland | OR | USA | May 24, 2018 |
| 506 | Ms | Anonymous | CORVALLIS | Oregon | N/G | May 24, 2018 |
| 507 | Mr. | Anonymous | Portland | OR | USA | May 24, 2018 |
| 508 | Ms | Andrea Hilliard | Portland | OR | USA | May 24, 2018 |
| 509 | Mrs. | Marisa Schmidt | Portland | OR | USA | May 24, 2018 |
| 510 | N/G | Marisa Schwartzman | Corvallis | Oregon | USA | May 24, 2018 |
| 511 | Mr. | Kevin Egan | West Linn | OR | USA | May 24, 2018 |
| 512 | Ms. | Kelly Jacobs | Portland | OR | N/G | May 24, 2018 |
| 513 | Mr. | Patrick Vandehey | Beaverton | Oregon | USA | May 24, 2018 |
| 514 | Ms. | Anonymous | Prineville | Oregon | USA | May 24, 2018 |
| 515 | N/G | Jessica Paul | PORTLAND | Oregon | USA | May 24, 2018 |
| 516 | Ms. | Pamela Fabrega | Portland | Oregon | USA | May 24, 2018 |
| 517 | Ms. | Allison Lugo Knapp | Portland | OR | USA | May 24, 2018 |
| 518 | Dr. | Andrew Strietelmeier | Eugene | Oregon | USA | May 24, 2018 |
| 519 | Dr | Catherine Rivara | N/G | California | USA | May 24, 2018 |
| 520 | Mrs. | Anonymous | Port Orchard | WA | USA | May 24, 2018 |
| 521 | mr | Anonymous | Portland | Oregon | USA | May 24, 2018 |
| 522 | Mr | Jake Harris | Portland | OR | USA | May 24, 2018 |
| 523 | Mr | Darren Balogh | Portland | Oregon | USA | May 24, 2018 |
| 524 | ms | Anonymous | portland | oregon | N/G | May 24, 2018 |
| 525 | Mr. | Sean Goller | Portland | Oregon | USA | May 24, 2018 |
| 526 | N/G | Jonathan Sturgeon | Oregon | Portland | USA | May 24, 2018 |
| 527 | N/G | Anonymous | Portland | OR | USA | May 24, 2018 |
| 528 | Mr | Anonymous | Portland | OR | N/G | May 24, 2018 |
| 529 | Ms | Beth Nelson | Portland | OR | N/G | May 24, 2018 |
| 530 | N/G | Amanda Gay | Portland | Or | USA | May 24, 2018 |
| 531 | N/G | Lee Feidelson | Portland | OREGON | N/G | May 24, 2018 |
| 532 | Mrs | Anonymous | Dayton | N/G | N/G | May 24, 2018 |
| 533 | Ms. | Mary Larkin Brennan | Portland | Oregon | USA | May 24, 2018 |
| 534 | Mrs. | Heidi Moore | Portland | Oregon | USA | May 24, 2018 |
| 535 | Mr. | Nicholas Kapranos | Portland | OR | N/G | May 24, 2018 |
| 536 | Mrs | Christina Hanson | Portland | OR | N/G | May 24, 2018 |
| 537 | N/G | Anonymous | Portland | Oregon | N/G | May 24, 2018 |
| 538 | MS | Anonymous | Portland | Oregon | N/G | May 24, 2018 |
| 539 | Ms | Rachel Yarger | Portland | Oregon | N/G | May 24, 2018 |
| 540 | Dr. | David Hays | Portland | Oregon | USA | May 24, 2018 |
| 541 | Mr | Eric Coffey | Portland | OR | USA | May 24, 2018 |
| 542 | Mrs. | Lori Ferraro | Portland | OR | USA | May 24, 2018 |
| 543 | Dr. | Vicki Purslow | Ashland | Oregon | USA | May 24, 2018 |
| 544 | N/G | Anonymous | Portland | Oregon | USA | May 24, 2018 |
| 545 | N/G | Anonymous | N/G | N/G | USA | May 24, 2018 |
| 546 | N/G | Chris Althoff | Portland | Oregon | USA | May 24, 2018 |
| 547 | Mrs. | Kim Olson-Charles | Portland | OR | N/G | May 24, 2018 |
| 548 | Ms. | Susan Allen | Portland | Oregon | N/G | May 24, 2018 |
| 549 | Ms. | Diana Collins | Portland | Oregon | USA | May 24, 2018 |
| 550 | N/G | Darcy Wilde | Portland | OR | N/G | May 24, 2018 |
- S/C/P - State, County or Province
- Dates displayed in the signature list are based on UTC/GMT
- Anonymous signatures signify people who have chosen not to display their names publicly
- A comment in gray indicates that the signer has hidden their comment from public view