Our appreciation is expressed to those listed below, who have made a contribution or pledge (as of 26 May 2011) to Zygon's Philip Hefner endowment fund, established to honor Philip Hefner for his twenty years of service as editor of Zygon. Donors wishing to support Zygon in this way may find more information and download a pledge/donation form at . Contributions up to a total of $70,000 will be matched.
| Guarantors ($2,000 and over) | |
| Solomon H. Katz | Karl E. Peters |
| William Lesher | |
| Benefactors ($1,000 to $1,999) | |
| Sustainers ($250 to $999) | |
| Charles C. Dickinson III | Ann and Gary Pederson anonymous (1) |
| Dr. Stephen Modell | |
| Sponsors ($100 to $249) | |
| Richard Busse | Joan Koss‐Chioino |
| Michael and Carolyn Cavanaugh | Normand and Marlene Laurendeau |
| Kim Eighmy | Lyman A. Page |
| David J. Ernat | Deb and Rich Van Der Molen anonymous (1) |
| Patrick A. Heelan | |
| Stewart W. Herman | |
| Friends ($25 to $99) | |
| Norman Richardson | Ronald Somerby |
Patrons—Annual Fund
Our appreciation is expressed to those listed below, who have made an annual contribution (as of 26 May 2011) of an amount in the stated categories. New contributors will be added to this list in future issues. Donors wishing to support Zygon in this way may find more information and download a pledge form at .
| Guarantor ($2,000 and over) | |
| Karl E. Peters | |
| Benefactors ($1,000 to $1,999) | |
| Sustainers ($250 to $999) | |
| Michael and Carolyn Cavanaugh | Rev. Dan Jungkuntz |
| Melvin Gray | K. Helmut Reich |
| Sponsors ($100 to $249) | |
| David Anderson | N. Kermit Olson |
| Charles Arnett | Gill and Lyman Page |
| Edward Clarke | Varadaraja V. Raman |
| Willem B. Drees | William and Marie Rottschaefer |
| Paula Fangman | Martin Sawa |
| Thomas L. Gilbert | Dr. and Mrs. Ronald E. Somerby |
| Harriet and Bob Glassman | Benton M. Stidd |
| Ward Goodenough | Arthur Suggs |
| Reginald Hamer | Eugene Troxell |
| William Irons | Edwin P. Wiley anonymous (4) |
| W. Michael Johnson | |
| Young Jun Kim | |
| Friends ($25 to $99) | |
| Dr. Rev. Sheldon W. Bennett | Antje and Heinz Jackelén |
| Robert and Ruth Bercaw | Jerry Josties |
| Elizabeth Bjorkman | Ernest Lane |
| Joseph A. Bracken, S.J. | Dr. and Mrs. Edward T. Ordman |
| Marjorie H. Davis | Mike and Linda Overton |
| Manuel Garcia Doncel | Mrs. Lawrence M. Powers |
| Kim Eighmy | Lea and Kurt Schweitz |
| Larry Erickson | Dan Soloman |
| William and Bonnie Falla | Mary Evelyn Tucker |
| Patrick A. Heelan | Marjorie Ann Young anonymous (3) |
| Katharine Houk | |
| Robert Howes | |
| Memorial Gifts | |
| In memory of | |
| Don Browning, | Paul Hamer, |
| given by Karl E. Peters | given by Reginald Hamer |
| Prof. Ted Burge, | Rev. Milton Olson, |
| given by anonymous | given by Larry Erickson |
| Henry Everett, | Toni Olson, |
| given by Elizabeth Bjorkman | given by N. Kermit Olson |
| Thomas Fangman, | |
| given by Paula Fangman | |
| Honorary Gifts | |
| In honor of | |
| Philip Hefner, | |
| given by Melvin Gray |