Endeavour Executive Committee




Benn Boehme

Benn is based in Hamburg, Germany. He's been singing barbershop on and off for over 25 years, mainly in mixed groups. His hardware achievements are international chorus bronze with EQMC and German quartet silver with Mix'n'Match. He's also chairman of the German supernerd mixed chorus Heavy Medal. He travels the world for barbershop most of the time. His hobbies are gardening, boating, cooking and old Vespas



Mary McGraw

In Barbershop since 2006, Irish based till 2019 with national ladies chorus, Ireland Unlimited, and local chorus Champagne Cork initially bass, then lead and currently tenor. Quarteting since 2010, nationally in several ladies quartets and since 2016 mixed barbershopping , which has become my real love. I took my first leap down the harmony brigade route in June 2016 at European harmony brigade in Berlin, where I was voted the GOGIMESW award and what an honour that was. I have attended 9 harmony brigade weekends since then… the European brigade, the UK harmony brigade and first US mixed brigade in Boston in Spring 2019. I am currently like so many Endeavourers in preparation for the first online, virtual UKHB (next February 2021) . I have been part of the winning scratch quartet twice, and supertramp or tramp at all events… You have to sing with everyone .. that’s all part of the fun the challenge is learning a song in 2 parts… Delighted to be part of the world bronze medal winning Mixed chorus in 2018, with EQ Rendezvous under the direction of the one and only Lisa Robathan, Irish open mixed quartet gold in 2018 with Mixed Blessings and silver with Snap. Was part of the silver medal winning chorus- Happy Together (with lots of other Endeavour members) under the leadership of Lindley Gram and directorship of Colin Reid in Ireland in early October 2019.


I currently sing with Cheshire Chord company and Steel City Voices, 2 amazing Labbs ladies barbershop choruses . I have been a music team member of the Virtual choir ‘ The Collective ‘ since its inception in April 2020, where I enjoy running music sessions with singers from all over the world, some sessions boasting attendees from many timezones, so it can be 12Noon, 3 pm, 8 pm and 9 pm all at the same zoom session. Isnt technology great. It’s a testament to our chorus, to see so many fellow Endeavourers being part of this amazing venture, Endeavour members form part of the tech team, music team, IT team and most importantly we sing and perform and learn new skills all while enjoying the journey of each new song in the virtual repertoire.


I am a horsey nutter since birth, got my first pony aged 3 and have been in the industry since then, I love hunting, cross country gallops, eventing and showjumping. My highlights to date : FEI international sj judge at the Royal Windsor horse show 2018 and RDS 2019, FEI Foreign judge at the world cup qualifier in Poloquani South Africa, I am still the youngest Irish International eFEI showjumping judge and Steward and currently I am a Director of the Munster Agricultural Society, the home of the Cork Summer show, one of the biggest agricultural shows in Ireland .


Delighted to be here at the very beginning of the good ship Endeavour’s mixed barbershop travels and I currently hold the position of Endeavour Secretary and work with a great team. Looking forward to 2021 when in person rehearsals will resume , and until then, we will continue to Zoom.


In my spare time I work fulltime.



Simon McGraw

Simon is our master of spreadsheets and keeper of coins! Currently singing with Spirit of Harmony, Simon is a keen Harmony Brigader and accomplished quartetter.

Rehearsal Co-ordinator

Lindley Gram

For many years, Lindley has been able to find barbershop groups that allowed him to sing with them as he moved around Europe. These days he takes part in and helps organise several Harmony Brigades each year (he's chairman of one, head of music for another, and webmaster for two others).  He directs a mixed chorus in Kent and sings in a couple of quartets.  He has a music room equipped for audio-editing and recording, and has been busy there this year creating virtual quartets and chorus from individual tracks.  In his spare time he pets the cat and rages about brexit, trump and other scourges. He is an avid walker and reader.

Membership Secretary

Geoff Lawson 

I first sang barbershop arrangements in 1980 BC (Before Children) when I stumbled across some photocopied polecats prior to going on a chalet skiing holiday in Switzerland with a group of fellow junior doctors. "We were gathering up the roses in the wild wood" was modified to "We were skiing down the moguls in the sunshine etc etc " and the first mixed barbershop in Verbier made their debut after dinner. To say the standard of singing was better than that of the skiing does not necessarily say much for our singing. Fast forward to 2007 when I went along to a barbershop taster session, and soon after was going along to my local chorus. In May 2014 I was at BABS 40th Anniversary when I met Lindley who pointed me towards Extreme Quarteting, and I enrolled in the EQ stream at Harmony College that August. Having got the bug I went to UK and European Harmony Brigades beginning in 2015 and like Benn have a 100% attendance at these fantastic events. Joining EQRendezvous and Endeavour was a no-brainer as meeting and singing with such a welcoming group of like-minded people has given me huge pleasure. I will retire from my job as a paediatrician in May 2021 and know that singing will become increasingly important to me.

Non-portfolio Officers

Nicola Ebert

Hi, I am Nicola and I am living currently in Berlin. More than half of my life I have been spending on working with my and "other people's" voices. Starting as a speech and language therapist, I then became a certified voice coach 18 years ago. I lived in Tokyo and London before moving to Berlin, always working privately with actors, speakers and singers. Recently I got several chances to do voice overs in documentaries, recite at public events and my voice will appear in a movie soon - so exciting!
But my heart and voice found their home in Barbershop singing.
Living in a German-American family and community, I first sang BS in our school ten tears ago. Our wonderful MD warned me: be careful, it's infectious. Once you are bitten by the bug... So true. I joined the Women in Black and have been their voice coach ever since.
Seven Harmony Brigades later, hitting stage in several European countries with quartets, choruses and ensembles I am a proud co-founder of our fantastic Endeavour Chorus. I don't know how many people I talked into that since then... :)
The energy, discipline, enthusiasm and friendship of our chorus is as unbelievable as the fact how quickly we developed within less than a year.
Travelling to England, singing with friends on that level under the direction of our wonderful MDs is truly a highlight of my singing and made my life rich.

Laura Hall

I am currently studying a post grad to be a Person-Centred Counsellor (in which I am class rep), I am a graduate accountant, I run my own mixed chorus, as well as a community choir, I am one of the section leaders for The Collective and The Collective Youth Choir since the beginning in March, and I am currently the Orchestra manager of the Kings Philharmonic Wind Orchestra (which I am currently looking at marketing, engaging emerging composers and soloists, and looking at a collaboration with the German Winds for a tour of Germany and Italy Papal performance).