| Spring Exhibition of the Cleveland Photographic Society | | April | 01 | 1917 | April | 8 | 1917 |
| A Selected Collection of Objects from the International Exhibition of Modern Decorative and Industrial Art from Paris | | April | 02 | 1926 | April | 20 | 1926 |
| 25th Annual Exhibition of the Work of Cleveland Artists and Craftsmen [May Show] | | April | 27 | 1943 | June | 06 | 1943 |
| Special Exhibition of Russian Peasant Embroidery and Weaving | | April | 01 | 1925 | June | 30 | 1925 |
| Insea-Unesco International Exhibition | | April | 04 | 1962 | May | 03 | 1962 |
| Geometry in Art and Architecture | | April | 01 | 1942 | May | 03 | 1942 |
| Cleveland's Sesqui-Centennial May Show: 28th Annual Exhibition of Work by Artists andCraftsmen of Cleveland | | April | 13 | 1946 | June | 09 | 1946 |
| Portrait of John D. Rockefeller by John Singer Sargent | | April | 07 | 1918 | April | 28 | 1918 |
| 16th Annual Circuit Exhibition by the Ohio Water Color Society | | April | 03 | 1941 | April | 30 | 1941 |
| Paintings by Ignacio Zuloaga lent by the artist and various owners | Link | April | 03 | 1917 | April | 25 | 1917 |
| The 60th Annual May Show | | April | 11 | 1979 | May | 13 | 1979 |
| Loie Fuller | | April | 10 | 1984 | June | 03 | 1984 |
| Near Eastern Embroideries | | April | 03 | 1951 | | | |
| Collection of French Children's Books | | April | 07 | 1951 | April | 14 | 1951 |
| Exhibition of European Peasant Embroideries and Textiles | | April | 07 | 1926 | July | 14 | 1926 |
| Work by Society of Scribes and Illuminators of Great Britain | | April | 09 | 1925 | April | 27 | 1925 |
| The Charles Isaacs and Carol Nigro Collection of American Photography | | April | 26 | 2003 | September | 10 | 2003 |
| The Ikle and Jacoby Collection of Laces and Embroideries | | April | 25 | 1962 | June | 03 | 1962 |
| 17th Annual Circuit Exhibition of Paintings by Members of the Ohio Water Color Society | | April | 03 | 1942 | May | 03 | 1942 |
| Drawings by Members | | April | 18 | 1946 | June | 15 | 1946 |
