Find Ancestors

trying to find any info.on my grandmothers side---name of JOHNSON.Her name was Mary Johnson B 4.9.1887,India.Died 19.2.1948 UK.She married my grandfather Herbert Silas Felthouse in 1907.He died in India 1917.Marys parents were Charles and Elizabeth.Both died in India.I am trying to trace relations of marys siblings. This is the info I have--- Robert Henry Johnson B 19.12.1872 India Charles ireland Johnson b 17.12.1874 India.He married Elizabeth Donaghue in 1898 Frederick Johnson b 21.2.1879 India.I believe he died in 1954 at Stockwell. He had a daughter C.Hunt who lived in Weston Super Mare.Frederick was also known as Walter. William Johnson B 10.4.1891 India George Johnson B 15.1.1893 India ? johnson who married a "jellie" ? johnson who married a "Gody" Ellen Johnson b 10.1.1881 India Jane Johnson b 27.7.1882 India. She married Henry Jacob Bullock 1903.Unfortunately he died of smallpox in 1905.They had 2 children Maud Jane who married Albert Victor Richardson and they had 3 sons. Eileen Dorothy who married Joseph Connolly and then married George Ernest Ball in 1924. they had 2 children,Malcolm George Ball who married Nancy Brown in Walsal 1945.They had a son Michael E Ball b 1946 Nottingham. Joyce Colleen Ball b 1927,married Noel John Nicholls.They have one son John Nicholls B 1945 Wolverhampton.Of course there may well be more children in all cases. I would love to track down any relatives i may have.As you can see the Johnson family were in India For many many years . My own father lived in India for 32 years before he came to the UK. Also the Johnson family probably came from Ireland. I do so hope that someone out there can help me. Many thanks Chris Emsley (nee Felthouse)