| Photo | Name | Category | Primary source | Date available | Projects |   | 
| no photo | Ian |  | Patons Knitting Book No. 357 |  |  | 17 | 
| no photo | Imelda |  | Patons Knitting Book No 492 |  |  |  | 
|   | In all-over pattern |  | P&B Wools 279, Two Matinee Coats | January 1947 | 1 | 9 | 
|   | In Speckled Wool |  | Stitchcraft No. 052, December 1936 | December 1936 | 1 | 41 | 
|   | In the Hall Mat |  | Stitchcraft No. 200, August 1950 | August 1950 | 1 | 27 | 
|   | In the Reefer Style |  | P&B Wools 354, 4 designs for 2-5 year olds | January 1955 |  | 13 | 
|   | In the Tyrolean tradition |  | P&B Wools 352, 3 Quick-to-Knits | January 1955 |  | 33 | 
| no photo | Inspired By The Duffle Coat |  | P&B Wools 313, Three Youthful Patterns |  |  |  | 
| no photo | Interval |  | Patons Knitting Book No. 449 |  |  |  | 
|   | Into the Blue! |  | Patons F. 524, Gala Triple Quick |  |  | 3 | 
|   | Inverness |  | Patons Knitting Book No. 240: Scottish Fair Isles |  | 1 | 13 | 
|   | Ireland |  | Woman's Weekly, Round the World Knitting Supplement, Need Date | January 1963 |  | 18 | 
|   | Irene |  | Patons Knitting Book No. 192 | August 1945 |  | 29 | 
|   | Irish Crochet in Wool |  | Stitchcraft No. 001, October 1932 | October 1932 | 1 | 35 | 
| no photo | Island of Cumbrae Border (Circular Shawl) |  | Beehive Series No. 55, Shawls |  | 1 | 3 | 
| no photo | It's a strike! |  | P&B Wools 9312, Patons Double Quick or Totem | January 1964 |  |  | 
|   | It's Trad, Dad, Matinee  Coat |  | P&B Wools SC 76, Beehive Baby Book: Knitting for the First Six Months |  | 3 | 37 | 
| no photo | Italian Raglan Cardigan |  | Stitchcraft No. 279, March 1957 | March 1957 |  |  | 
| no photo | Italian sports sweater |  | P&B Wools 9219, Double Knittings by Patons | January 1964 |  |  | 
|   | Italian zipper coat |  | P&B Wools 639, The European Line in Double Knitting | January 1958 |  | 8 | 
|   | Jack in the Box Jumper |  | P&B Wools 711, 4 Designs in Patons Moorland or Double Quick Knitting |  |  | 3 | 
|   | Jacket |  | Patons S.A.1133, Beehive Double Crepe | January 1966 |  | 17 | 
|   | Jacket |  | P&B Wools 463, Two Jackets in Double Knittings |  |  | 16 | 
|   | Jacket |  | Stitchcraft No. 180, December 1948 | December 1948 |  | 9 | 
|   | Jacket |  | Stitchcraft No. 184, April 1949 | April 1949 |  | 9 |