| A guide to tracing your Dublin ancestors | Ryan, James G.Smith, Brian | Monograph or Collective Volume | Flyleaf | 1998 |
| A guide to tracing your Dublin ancestors | Ryan, James G.Smith, Brian | Monograph or Collective Volume | Flyleaf Press | 2009 |
| A note on tenants of Putland estate in Garrycloyne & Templeusque, Co. Cork, 1815-25 | Ryan, James G. | Article in Journal | | 2024 |
| Catholic church records | Ryan, James G. | Article in Book | | 1992 |
| Introduction | Ryan, James G. | Article in Book | | 1992 |
| Irish church records : their history, availability and use in family and local history research | | Monograph or Collective Volume | Flyleaf Press | 2001 |
| Irish church records : their history, availability and use in family and local history research | | Monograph or Collective Volume | Flyleaf Press | 1992 |
| Irish records : sources for family and local history | Ryan, James G. | Monograph or Collective Volume | Ancestry | 1997 |
| Máirín Cregan (Ryan) | Ryan, James G. | Article in Journal | | 2013 |
| Servants and tradesmen of Lord Louth, Tallanstown, Co. Louth 1801-03 | Ryan, James G. | Article in Journal | | 2024 |
| Sources for Irish family history | Ryan, James G. | Monograph or Collective Volume | Flyleaf | 2001 |
| Tenants and labourers on the Hart Estate, Kilderry, Muff (1750-70) | Ryan, James G. | Article in Journal | | 2025 |
| Tenants of the O'Donel Estate in Cong, 1790-1815 | Ryan, James G. | Article in Journal | | 2024 |
| Tracing your Dublin ancestors | Ryan, James G.Smith, Brian | Monograph or Collective Volume | Flyleaf Press | 2017 |