| Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Beatrice' | Small | Med-Green | Streaked | White | Hybrid | Deep-Purple | July | Williams, Frances | --NR-- |
| 'Beatrice Variegated' | Medium | Dark-Green | Streaked | White | Nat-Sport | Light-Purple | July | Williams, Frances | --NR-- |
| 'Betsy King' | Medium | Med-Green | | - | Hybrid | Deep-Purple | - | Williams, Frances | .1986 |
| 'Carol' | Medium | Blue/Green | Marginal | White | Nat-Sport | Pale-Lavender | July into August | Williams, Frances & AHS | .1986 |
| 'Carol's Sister' | Large | Med-Green | | - | Nat-Sport | Pale-Lavender | July into August | Williams, Frances | --NR-- |
| 'Charldon' | - | - | | - | Unknown | - | - | Williams, Frances | --NR-- |
| 'Dorothy' | Medium | Dark-Green | | - | Hybrid | Light-Purple | August | Williams, Frances & AHS | .1986 |
| 'Frances Williams' | Large | Blue/Green | Marginal | Yellow | Nat-Sport | Pale-Lavender | July into August | Williams, Frances & Williams, Connie | .1986 |
| 'Frances Williams Squash Edge' | Large | Blue/Green | Marginal | Yellow | Nat-Sport | Near-White | June into July | Williams, Frances & Williams, Connie | --NR-- |
| 'FRW No. 1023' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 1024' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 1025' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 1141' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 1142' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 1151' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 1154' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 1154' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 1155' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 1156' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 1221' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 1246' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 1258' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 128' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 1290' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 1350' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 1373' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 1383' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 1399A' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 1429' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 2134' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 305' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 382' | - | - | | | Unknown | - | - | Williams, Frances | --NR-- |
| 'FRW No. 383' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 490' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 502' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 511' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 537' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 541' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 791' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 851' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 941A' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No. 942A' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'FRW No.152' | - | - | | | Duplicate | - | - | Williams, Frances | --NR- |
| 'Glauca Stearn' | - | - | | - | Nat-Sport | - | - | Williams, Frances | --NR-- |
| 'Golden Circles' | Large | Blue/Green | | - | Nat-Sport | Near-White | June into July | Williams, Frances & Ruh, Peter | .1998 |
| 'Green Beatrice' | Medium | Med-Green | | - | Hybrid | Light-Purple | August | Williams, Frances & Ruh, Peter | .1987 |
| 'Green Piecrust' | Giant | Med-Green | | - | Hybrid | Pale-Lavender | June into July | Williams, Frances & AHS | .1986 |
| 'Green Ripples' | Large | Med-Green | | - | Hybrid | Near-White | June into July | Williams, Frances & Williams, Connie | .1986 |
| 'Green Velvet' | - | - | | - | Unknown | - | - | Williams, Frances | --NR-- |
| 'Kathleen' | Medium | Med-Green | | - | Hybrid | Med-Lavender | August | Williams, Frances | .1986 |
| 'Kelsey' | Medium | Med-Green | | - | Hybrid | Pale-Lavender | August to October | Williams, Frances & Ruh, Peter | .1996 |
| 'Krossa H-8' | - | - | | - | Duplicate | - | - | Williams, Frances & Krossa, Gus | --NR-- |
| 'Lavender Lady' | Small | Med-Green | | - | Hybrid | Pale-Lavender | August | Williams, Frances & Williams, Connie | .1986 |
| 'Longipes' H. sieboldiana | - | - | | - | Duplicate | - | - | Sataka, T. & Williams, Frances | --NR-- |
| 'Louisa' | Small | Light-Green | Marginal | White | Hybrid | Pure-White | August | Williams, Frances & Williams, Connie | .1986 |
| 'Purple Profusion' | Medium | Med-Green | | - | Unknown | Deep-Purple | August to October | Williams, Frances & Williams, Connie | .1986 |
| 'Sentinels' | Medium | Med-Green | | - | Hybrid | Light-Purple | August | Williams, Frances & Williams, Connie | .1986 |
| 'Slim Polly' | Small | Light-Green | | - | Hybrid | Light-Purple | August | Williams, Frances | .1986 |
| 'Snow Flakes' | Medium | Med-Green | | - | Hybrid | Pure-White | August | Williams, Frances & AHS | .1986 |
| 'Stearn's Beauty' | Medium | Blue/Green | | - | Unknown | - | June into July | Williams, Frances & Ruh, Peter | .1995 |
| 'Sturtevant' | Large | Blue/Green | | - | Unknown | - | - | Sturtevant, Grace & Williams, Frances & Ruh, Peter | .2005 |
| 'Sunlight' | Large | Yellow | | - | Nat-Sport | Near-White | July into August | Williams, Frances & Ruh, Peter | .2001 |
| 'Surprise' | Medium | Med-Green | | - | Unknown | Pale-Lavender | August to October | Williams, Frances & AHS | .1986 |
| 'Sweet Susan' | Large | Med-Green | | - | Hybrid | Pale-Lavender | August | Williams, Frances & Williams, Connie | .1986 |
| 'Tinker Bell' | Small | Med-Green | | - | Hybrid | Near-White | August to October | Williams, Frances & Williams, Connie | .1986 |
| 'White Trumpets' | Medium | Light-Green | | - | Unknown | Near-White | July into August | Hensen, Karel & Williams, Frances | .1983 |
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