Yes!, Wikipedia comes to the rescue...http://en.wikipedia.org/wiki/Memon
(Gujarati: મેમણ; Urdu: میمن; Hindi: मेमन) an ethnic group tracing their roots largely to Sindh, Kutch and Kathiawar and are sometimes seen as transitional between the two regions. A Sunni Muslim group, Memons predominantly adhere to Hanafi Sunni Islam although some are Maliki. Historically Memons are a mercantile community (and are generally referred to as a business community in Pakistan and India)
. Most of them are merchants and traders, industrialists, professionals and generally hold white collar jobs.
Role of the Jamaat
Memons generally tie to their respective locally well-organized societies called "Jamat", literally means congregation, which are generally established for the betterment and social welfare of its members which may include issuance of marriage license, matrimonial dispute resolution, adaptation and enforcement of the rules and guidelines against certain undesirable customs, establish healthcare and education centres, provide various facilities for the community need and also financial support and housing for the poor and needy members and sometime non-members.
The following are some common well organized societies or welfare associations called Jamaat (Gujarāti script: જમાત) of the Memons community which generally refer to their ancestral village or town.
Kathiawadi Memon Jamats
Memons follow the Hanafi school of Sunni Islam
Memons usually marry within their own social affiliation (Jamat) (endogamy), depending on circumstances a group (Jamat) may be as small as few hundred families and as large as few thousand families. For example Cutchi Memon define their jamat to be entire group having very few sub-groups whereas Kathiawadi Memons are branched into few dozens sub-groups. For Kathiawadi Memon a group, by and large, usually shares their ancestor village in Kathiawad as a reference point. Marriage between close relatives especially first cousins is discouraged but such reunion is possible where a group is too small. Marriage outside the social group (e.g. marrying a Surti Muslim) is now quite common and accepted by most Memons, although some community elders may still discourage it.