William Jacobs to Agnes Jane James - 1911 Census household returns
- William Jacobs to William Henry Jacobs
- William Henry Jacobs to Edward Percy Jacobsen
- Elizabeth Rhoda Jacobsen to Carl Jacobson
- Caroline Jacobson to Isaac Jacobson
- Isabella Jacobson to Phillip Jacobson
- Richard Johnson Jacobson to James Stuart Russell Jacoby
- John Jacoby to William Jacomb
- Francis Edward Shaw Jacomb Hood to Alfred Jacots
- Charles T Jacottet to Alfred Thomas Jacques
- Algernon Alfred Jacques to Augustus Jacques
- Benjamin Jacques to Edward Jacques
- Edward Jacques to Ernest Jacques
- Ernest Jacques to George Jacques
- George Jacques to Harry Jacques
- Harry Jacques to James Jacques
- James Jacques to John Jacques
- John Jacques to John Thomas Jacques
- John William Jacques to Levi Jacques
- Lewis Jacques to Oscar Irwen Jacques
- Otho Lewis Jacques to Sarah Ann Jacques
- Sarah Ann Jacques to Thomas Jacques
- Thomas Jacques to William Jacques
- William Jacques to William Henry Jacques
- William Henry Jacques to Eugene Jacquin
- Seraphim Allard Jacquin to Louis Jaeger
- Robert Jaeger to Max Jaffe
- Morris Jaffe to Frances Jaga
- Prophet Isaiah Jagard to Harriet Jagg
- Henry Jagg to William Jaggar
- William Jaggar to Henry Jaggard
- Henry Jaggard to Thomas William Jaggard
- Walter Jaggard to Alfred Jagger
- Alfred Jagger to Charles Jagger
- Charles Jagger to Elizabeth Jagger
- Elizabeth Jagger to Fred Jagger
- Fred Jagger to Harriet Jagger
- Harriet Jagger to James Jagger
- James Jagger to John D Jagger
- John E Jagger to Joseph Irven Jagger
- Joseph Wood Jagger to Pamelia Jagger
- Percy Proctor Jagger to Sidney Jagger
- Sidney Jagger to Walter Jagger
- Walter Jagger to Albert Jaggers
- Albert Edward Jaggers to Martin Jaggin
- Martha Rosina Jaggord to Thomas Granville Jaggs
- William Jaggs to Arthur Jago
- Ashley Tilsed Jago to Fanny Jago
- Frances Jago to John Jago
- John Jago to Raphael Jago
- Reginald Jago to William Jago
- William Jago to Edwin Osborne Jags
- Eliza Jags to William Jain
- Aaron Jaine to Arthur Jakeman
- Arthur George Jakeman to G E Jakeman
- George Jakeman to James Jakeman
- James Jakeman to Robert Jakeman
- Rose Jakeman to William Ernest Jakeman
- William H Jakeman to Crisp Jakes
- Daniel Jakes to John Jakes
- John Jakes to Hugh Jakeway
- Jane Jakeway to John Jakins
- Joseph Jakins to George H Jalland
- George Herbert Jalland to Mary Jamees
- John Jameeson to Abraham James
- Abraham James to Agnes Jane James